__label__lab_guide_question atom weight mercuri ? __label__virtual_lab_manipulation set oven 300 degre . __label__lab_guide_question whi mercuri atom exhibit inelast collis ? __label__virtual_lab_manipulation check furnac temperatur . __label__lab_guide_question reaction time chang temperatur ? __label__virtual_lab_manipulation increas pressur reaction chamber . __label__lab_guide_question molar mass sodium chlorid ? __label__virtual_lab_manipulation adjust pressur 2 atmospher . __label__lab_guide_question factor influenc rate chemic reaction ? __label__virtual_lab_manipulation set reaction vessel temperatur 350k . __label__lab_guide_question behavior atom dure inelast collis ? __label__virtual_lab_manipulation record pressur read reaction chamber . __label__lab_guide_question doe temperatur affect atom motion ? __label__virtual_lab_manipulation turn heat element . __label__lab_guide_question relationship pressur volum gas ? __label__virtual_lab_manipulation increas power laser beam . __label__lab_guide_question whi temperatur control import chemic experi ? __label__virtual_lab_manipulation set ph level neutral solut . __label__lab_guide_question doe atom radius chang across period ? __label__virtual_lab_manipulation check vvr display . __label__lab_guide_question differ endotherm exotherm reaction ? __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question temperatur reaction vessel optim result ? __label__virtual_lab_manipulation adjust cool system maintain constant temperatur . __label__lab_guide_question doe pressur affect solubl gase liquid ? __label__virtual_lab_manipulation set centrifug speed 5000 rpm . __label__lab_guide_question happen gas temperatur lower ? __label__virtual_lab_manipulation check pressur read reaction chamber . __label__lab_guide_question principl behind boyl 's law ? __label__virtual_lab_manipulation increas concentr reactant solut . __label__lab_guide_question densiti calcul liquid ? __label__virtual_lab_manipulation set timer 15 minut . __label__lab_guide_question whi gase expand heat ? __label__virtual_lab_manipulation check voltag level circuit . __label__lab_guide_question main factor affect reaction rate ? __label__virtual_lab_manipulation set volum flask 500 ml . __label__lab_guide_question definit ideal gas ? __label__virtual_lab_manipulation observ color chang indic . __label__lab_guide_question doe temperatur affect reaction rate ? __label__virtual_lab_manipulation set scale graph show full rang . __label__lab_guide_question relationship forc acceler newton 's second law ? __label__virtual_lab_manipulation set simul speed high . __label__lab_guide_question safeti precaut handl volatil chemic ? __label__virtual_lab_manipulation set furnac desir temperatur . __label__lab_guide_question whi necessari control pressur certain reaction ? __label__virtual_lab_manipulation increas intens light sourc . __label__lab_guide_question doe light affect rate photosynthesi plant ? __label__virtual_lab_manipulation check pressur gaug reaction vessel . __label__lab_guide_question effect concentr reaction speed ? __label__virtual_lab_manipulation adjust laser 's wavelength 450 nm . __label__lab_guide_question catalyst speed chemic reaction ? __label__virtual_lab_manipulation record final temperatur experi . __label__lab_guide_question happen dure endotherm reaction ? __label__virtual_lab_manipulation set ph meter automat calibr mode . __label__lab_guide_question determin densiti unknown substanc ? __label__virtual_lab_manipulation adjust volum liquid beaker . __label__lab_guide_question signific control experi ? __label__virtual_lab_manipulation set microscop 200x magnif . __label__lab_guide_question whi atom bond molecul ? __label__virtual_lab_manipulation adjust airflow chamber . __label__lab_guide_question doe atom model explain chemic reaction ? __label__virtual_lab_manipulation measur liquid 's volum use graduat cylind . __label__lab_guide_question role electron chemic bond ? __label__virtual_lab_manipulation set experi timer 30 minut . __label__lab_guide_question doe chang concentr affect reaction rate ? __label__virtual_lab_manipulation turn vacuum pump chamber . __label__lab_guide_question isotop differ regular atom ? __label__virtual_lab_manipulation set incub 37 ° c . __label__lab_guide_question relationship temperatur pressur gase ? __label__virtual_lab_manipulation start virtual reaction simul . __label__lab_guide_question atom weight mercuri ? __label__virtual_lab_manipulation set furnac temperatur 250 degre . __label__lab_guide_question whi mercuri atom exhibit inelast collis ? __label__virtual_lab_manipulation adjust pressur reaction chamber 2 atm . __label__lab_guide_question temperatur pressur affect reaction rate ? __label__virtual_lab_manipulation measur current circuit report valu . __label__lab_guide_question specif heat capac water room temperatur ? __label__virtual_lab_manipulation increas voltag 5 volt . __label__lab_guide_question doe increas temperatur influenc atom behavior ? __label__virtual_lab_manipulation turn microscop zoom sampl . __label__lab_guide_question chemic formula sodium chlorid ? __label__virtual_lab_manipulation set ph solut 7 . __label__lab_guide_question properti gas low pressur ? __label__virtual_lab_manipulation lower temperatur chamber 50 ° c . __label__lab_guide_question whi import control pressur experi ? __label__virtual_lab_manipulation check pressur gaug reaction vessel . __label__lab_guide_question doe light absorpt chang atom structur ? __label__virtual_lab_manipulation adjust laser intens 80 % . __label__lab_guide_question characterist first-ord reaction ? __label__virtual_lab_manipulation increas rpm stirrer . __label__lab_guide_question mass electron kilogram ? __label__virtual_lab_manipulation turn heat element . __label__lab_guide_question catalyst affect reaction mechan ? __label__virtual_lab_manipulation verifi temperatur set incub . __label__lab_guide_question factor influenc rate diffus gase ? __label__virtual_lab_manipulation start spectromet record spectrum . __label__lab_guide_question formula calcul kinet energi ? __label__virtual_lab_manipulation adjust optic densiti 0.5 . __label__lab_guide_question differ solvent affect solubl rate ? __label__virtual_lab_manipulation find ideal voltag circuit setup . __label__lab_guide_question happen dure freez point depress solvent ? __label__virtual_lab_manipulation monitor gas flow rate consist . __label__lab_guide_question relationship pressur volum gase ? __label__virtual_lab_manipulation increas cool rate system . __label__lab_guide_question doe pressur affect boil point liquid ? __label__virtual_lab_manipulation chang speed motor 150 rpm . __label__lab_guide_question differ ionic coval bond ? __label__virtual_lab_manipulation set timer 15 minut . __label__lab_guide_question determin molar mass unknown gas ? __label__virtual_lab_manipulation turn vacuum pump evacu chamber . __label__lab_guide_question atom number oxygen ? __label__virtual_lab_manipulation reset system default valu . __label__lab_guide_question doe concentr reactant affect reaction rate ? __label__virtual_lab_manipulation measur resist wire . __label__lab_guide_question assumpt made ideal gas law ? __label__virtual_lab_manipulation adjust volum liquid 50 ml . __label__lab_guide_question role enzym biolog reaction ? __label__virtual_lab_manipulation stop reaction log time . __label__lab_guide_question doe temperatur affect solubl salt ? __label__virtual_lab_manipulation start heat element 100 ° c . __label__lab_guide_question happen electron absorb photon ? __label__virtual_lab_manipulation set wavelength light 400 nm . __label__lab_guide_question whi necessari maintain constant temperatur dure reaction ? __label__virtual_lab_manipulation check current temperatur reaction vessel . __label__lab_guide_question effect ionic strength solubl ionic compound ? __label__virtual_lab_manipulation reduc gas pressur 1 atm . __label__lab_guide_question energi transfer dure chemic reaction ? __label__virtual_lab_manipulation increas laser power 200 mw . __label__lab_guide_question doe concentr catalyst influenc reaction rate ? __label__virtual_lab_manipulation monitor ph solut continu . __label__lab_guide_question differ open close system thermodynam ? __label__virtual_lab_manipulation set chamber humid 60 % . __label__lab_guide_question doe particl size affect rate reaction ? __label__virtual_lab_manipulation check fluid level reservoir . __label__lab_guide_question relat forc displac work ? __label__virtual_lab_manipulation set mixer speed 1200 rpm . __label__lab_guide_question factor contribut stabil chemic compound ? __label__virtual_lab_manipulation adjust focal length microscop len . __label__lab_guide_question differ alkan alken ? __label__virtual_lab_manipulation chang magnet field strength experi . __label__lab_guide_question doe energi photon vari frequenc ? __label__virtual_lab_manipulation check read thermomet reaction chamber . __label__lab_guide_question role activ energi chemic reaction ? __label__virtual_lab_manipulation chang measur unit metric . __label__lab_guide_question calcul rate reaction experiment ? __label__virtual_lab_manipulation increas stir speed 200 rpm . __label__lab_guide_question signific arrhenius equat ? __label__virtual_lab_manipulation decreas chamber 's humid 30 % . __label__lab_guide_question speed sound affect temperatur ? __label__virtual_lab_manipulation set centrifug 3000 rpm . __label__lab_guide_question doe light intens affect photosynthesi rate ? __label__virtual_lab_manipulation adjust power suppli 15v . __label__lab_guide_question factor determin boil point substanc ? __label__virtual_lab_manipulation stop experi 10 minut . __label__lab_guide_question differ conductor insul ? __label__virtual_lab_manipulation find densiti materi sampl . __label__lab_guide_question determin concentr solut experiment ? __label__virtual_lab_manipulation activ laser monitor output . __label__lab_guide_question whi doe solubl gase decreas temperatur ? __label__virtual_lab_manipulation check status experi 's sensor . __label__lab_guide_question relationship atom number chemic properti ? __label__virtual_lab_manipulation find melt point substanc chamber . __label__lab_guide_question doe pressur affect boil point liquid ? __label__virtual_lab_manipulation turn cool system . __label__lab_guide_question boil point water sea level ? __label__virtual_lab_manipulation adjust pressur chamber 1.2 atmospher . __label__lab_guide_question doe atom structur mercuri affect properti ? __label__virtual_lab_manipulation set reaction vessel 100 degre celsius . __label__lab_guide_question specif heat capac aluminum ? __label__virtual_lab_manipulation increas volum gas experi 50 % . __label__lab_guide_question explain principl inelast collis ? __label__virtual_lab_manipulation monitor temperatur furnac ani fluctuat . __label__lab_guide_question temperatur requir optim enzym activ ? __label__virtual_lab_manipulation turn spectromet set wavelength 450 nm . __label__lab_guide_question whi doe pressur increas volum gas decreas ? __label__virtual_lab_manipulation check pressur read reaction chamber . __label__lab_guide_question half-lif carbon-14 ? __label__virtual_lab_manipulation decreas voltag power suppli 5v . __label__lab_guide_question doe atom mass element relat densiti ? __label__virtual_lab_manipulation adjust humid level simul environ . __label__lab_guide_question purpos calorimet experi ? __label__virtual_lab_manipulation reset gas concentr zero start experi . __label__lab_guide_question relationship forc acceler newton 's second law ? __label__virtual_lab_manipulation set ph level solut 7 . __label__lab_guide_question doe light intens affect rate photosynthesi ? __label__virtual_lab_manipulation set timer 30 minut reaction process . __label__lab_guide_question differ kinet potenti energi ? __label__virtual_lab_manipulation increas laser intens 100 % . __label__lab_guide_question catalyst influenc rate chemic reaction ? __label__virtual_lab_manipulation adjust speed stir motor 200 rpm . __label__lab_guide_question factor affect rate diffus ? __label__virtual_lab_manipulation record temperatur everi 5 minut dure trial . __label__lab_guide_question titrat use determin concentr solut ? __label__virtual_lab_manipulation decreas intens light sourc half . __label__lab_guide_question differ exotherm endotherm reaction ? __label__virtual_lab_manipulation increas vacuum pressur 0.5 atm . __label__lab_guide_question calcul molar solut ? __label__virtual_lab_manipulation switch gas valv open check flow rate . __label__lab_guide_question ideal gas law equat ? __label__virtual_lab_manipulation adjust centrifug speed 3000 rpm . __label__lab_guide_question doe law conserv mass appli chemic reaction ? __label__virtual_lab_manipulation check liquid level distil column . __label__lab_guide_question differ accuraci precis measur ? __label__virtual_lab_manipulation set simul run test 1 hour . __label__lab_guide_question calcul densiti object ? __label__virtual_lab_manipulation turn heat element let solut cool . __label__lab_guide_question whi reaction rate faster higher temperatur ? __label__virtual_lab_manipulation increas rotat speed shaker 1200 rpm . __label__lab_guide_question factor contribut solubl substanc ? __label__virtual_lab_manipulation set filter size 5 micron experi . __label__lab_guide_question principl behind spectrophotometri ? __label__virtual_lab_manipulation check data logger ani error measur . __label__lab_guide_question boyl 's law doe appli gase ? __label__virtual_lab_manipulation increas temperatur furnac 50 degre . __label__lab_guide_question role control group experi ? __label__virtual_lab_manipulation turn microscop adjust focus . __label__lab_guide_question determin chemic formula compound ? __label__virtual_lab_manipulation reset equip run simul . __label__lab_guide_question differ physic chang chemic chang ? __label__virtual_lab_manipulation check gas chromatograph ani irregular read . __label__lab_guide_question law univers gravit ? __label__virtual_lab_manipulation set heat rate reaction vessel 5 ° c per minut . __label__lab_guide_question principl chromatographi ? __label__virtual_lab_manipulation monitor ph level adjust necessari . __label__lab_guide_question doe temperatur affect solubl gase ? __label__virtual_lab_manipulation check status simul befor proceed . __label__lab_guide_question differ conductor insul ? __label__virtual_lab_manipulation decreas amount reagent mixtur . __label__lab_guide_question doe term " activ energi " refer reaction ? __label__virtual_lab_manipulation set rotat speed rotor 1500 rpm . __label__lab_guide_question catalyst lower activ energi reaction ? __label__virtual_lab_manipulation record read thermocoupl everi minut . __label__lab_guide_question doe pressur affect volum gas constant temperatur ? __label__virtual_lab_manipulation decreas chamber 's pressur 0.8 atm . __label__lab_guide_question formula kinet energi ? __label__virtual_lab_manipulation turn electr current check circuit . __label__lab_guide_question doe buffer solut maintain ph stabil ? __label__lab_guide_question molecular weight oxygen ? __label__virtual_lab_manipulation set pressur chamber 1.5 atm . __label__lab_guide_question whi doe hydrogen low boil point ? __label__virtual_lab_manipulation adjust speed stirrer 200 rpm . __label__lab_guide_question chemic properti sodium ? __label__virtual_lab_manipulation increas voltag 5 volt . __label__lab_guide_question doe temperatur affect reaction rate ? __label__virtual_lab_manipulation turn bunsen burner . __label__lab_guide_question atom radius chlorin ? __label__virtual_lab_manipulation check ph level solut . __label__lab_guide_question happen dure exotherm reaction ? __label__virtual_lab_manipulation reset experi start . __label__lab_guide_question catalyst speed reaction ? __label__virtual_lab_manipulation open control panel spectromet . __label__lab_guide_question principl behind boyl 's law ? __label__virtual_lab_manipulation set temperatur 25 ° c . __label__lab_guide_question explain concept activ energi ? __label__virtual_lab_manipulation check flow rate gas . __label__lab_guide_question whi doe gas expand heat ? __label__virtual_lab_manipulation increas light intens 10 % . __label__lab_guide_question ideal gas law equat ? __label__virtual_lab_manipulation decreas pressur 0.8 atm . __label__lab_guide_question doe atom number relat element 's properti ? __label__virtual_lab_manipulation monitor temperatur fluctuat vessel . __label__lab_guide_question differ acid base ? __label__virtual_lab_manipulation set timer 30 minut . __label__lab_guide_question measur rate chemic reaction ? __label__virtual_lab_manipulation turn gas suppli . __label__lab_guide_question formula calcul molar ? __label__virtual_lab_manipulation chang light wavelength 450 nm . __label__lab_guide_question whi materi conduct electr ? __label__virtual_lab_manipulation increas stirrer speed 500 rpm . __label__lab_guide_question doe pressur affect volum gas ? __label__virtual_lab_manipulation check viscos solut . __label__lab_guide_question differ conductor insul ? __label__virtual_lab_manipulation set gas pressur 2 atm . __label__lab_guide_question relationship frequenc wavelength ? __label__virtual_lab_manipulation measur voltag across circuit . __label__lab_guide_question determin concentr solut ? __label__virtual_lab_manipulation adjust optic len clearer read . __label__lab_guide_question oxidation-reduct reaction ? __label__virtual_lab_manipulation increas current circuit 10 . __label__lab_guide_question factor influenc solubl substanc ? __label__virtual_lab_manipulation start heat exchang process . __label__lab_guide_question isotop differ ? __label__virtual_lab_manipulation set humid level 50 % . __label__lab_guide_question whi water consid polar molecul ? __label__virtual_lab_manipulation monitor pressur gaug ani fluctuat . __label__lab_guide_question doe buffer solut maintain ph level ? __label__virtual_lab_manipulation open door experi chamber . __label__lab_guide_question signific activ energi reaction ? __label__virtual_lab_manipulation decreas furnac temperatur 200 ° c . __label__lab_guide_question differ endotherm exotherm reaction ? __label__virtual_lab_manipulation adjust angl microscop len . __label__lab_guide_question calcul densiti object ? __label__virtual_lab_manipulation set baromet 1000 hpa . __label__lab_guide_question role enzym biolog reaction ? __label__virtual_lab_manipulation increas reaction time 15 minut . __label__lab_guide_question boil point ethanol ? __label__virtual_lab_manipulation turn experi 's light sourc . __label__lab_guide_question doe electr current flow conductor ? __label__virtual_lab_manipulation adjust filter set microscop . __label__lab_guide_question purpos control group experi ? __label__virtual_lab_manipulation increas frequenc signal generat . __label__lab_guide_question doe presenc solvent affect rate reaction ? __label__virtual_lab_manipulation measur distanc object travel . __label__lab_guide_question whi reaction releas energi absorb ? __label__virtual_lab_manipulation set voltag power suppli 9v . __label__lab_guide_question differ catalyst affect reaction rate ? __label__virtual_lab_manipulation open gas valv slowli . __label__lab_guide_question specif heat capac water ? __label__virtual_lab_manipulation record initi pressur system . __label__lab_guide_question whi metal conduct heat better ? __label__virtual_lab_manipulation set oven temperatur 400 ° c . __label__lab_guide_question identifi unknown substanc lab experi ? __label__virtual_lab_manipulation turn heat element maximum power . __label__lab_guide_question factor affect rate diffus gase ? __label__virtual_lab_manipulation start centrifug 3000 rpm . __label__lab_guide_question measur energi photon ? __label__virtual_lab_manipulation monitor electr resist read . _label__virtual_lab_manipul set reaction chamber 20 % oxygen atmospher . __label__virtual_lab_manipulation adjust first excit energi ? __label__lab_guide_question keithley electromet ? __label__lab_guide_question describ electron emiss ? __label__virtual_lab_manipulation turn electron emiss ? __label__lab_guide_question true cathod temperatur ? __label__lab_guide_question doe dc power suppli ? __label__virtual_lab_manipulation turn mercuri vapor pressur ? __label__virtual_lab_manipulation measur current collect electrod ? __label__lab_guide_question whi necessari anod voltag ? __label__lab_guide_question thermion emiss ? __label__virtual_lab_manipulation switch thermion emiss ? __label__lab_guide_question happen first excit energi ? __label__virtual_lab_manipulation switch thermion emiss ? __label__lab_guide_question doe keithley electromet ? __label__virtual_lab_manipulation observ anod voltag ? __label__virtual_lab_manipulation increas dc power suppli ? __label__lab_guide_question true current collect electrod ? __label__lab_guide_question happen mercuri vapor pressur ? __label__virtual_lab_manipulation increas keithley electromet ? __label__lab_guide_question describ thermion emiss ? __label__lab_guide_question doe mercuri vapor pressur ? __label__virtual_lab_manipulation adjust cathod temperatur ? __label__virtual_lab_manipulation turn retard voltag ? __label__virtual_lab_manipulation increas first excit energi ? __label__lab_guide_question doe anod voltag ? __label__lab_guide_question happen mercuri vapor pressur ? __label__virtual_lab_manipulation record anod voltag ? __label__virtual_lab_manipulation turn electron emiss ? __label__virtual_lab_manipulation set dc power suppli ? __label__lab_guide_question true keithley electromet ? __label__lab_guide_question describ dc power suppli ? __label__virtual_lab_manipulation switch dc power suppli ? __label__lab_guide_question happen retard voltag ? __label__virtual_lab_manipulation set keithley electromet ? __label__virtual_lab_manipulation check current collect electrod ? __label__lab_guide_question thermion emiss ? __label__virtual_lab_manipulation observ anod voltag ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__lab_guide_question 's signific cathod temperatur ? __label__lab_guide_question anod voltag ? __label__lab_guide_question thermion emiss ? __label__lab_guide_question true dc power suppli ? __label__virtual_lab_manipulation turn dc power suppli ? __label__lab_guide_question true first excit energi ? __label__lab_guide_question explain purpos mercuri vapor pressur ? __label__virtual_lab_manipulation measur dc power suppli ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__virtual_lab_manipulation measur current collect electrod ? __label__virtual_lab_manipulation switch keithley electromet ? __label__lab_guide_question first excit energi ? __label__virtual_lab_manipulation observ electron emiss ? __label__lab_guide_question happen thermion emiss ? __label__virtual_lab_manipulation switch anod voltag ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__virtual_lab_manipulation switch anod voltag ? __label__virtual_lab_manipulation observ electron emiss ? __label__virtual_lab_manipulation increas cathod temperatur ? __label__lab_guide_question true electron emiss ? __label__lab_guide_question current collect electrod ? __label__virtual_lab_manipulation measur keithley electromet ? __label__lab_guide_question true first excit energi ? __label__lab_guide_question 's signific first excit energi ? __label__lab_guide_question happen current collect electrod ? __label__virtual_lab_manipulation record keithley electromet ? __label__lab_guide_question whi doe cathod temperatur ? __label__lab_guide_question describ electron emiss ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__lab_guide_question happen keithley electromet ? __label__lab_guide_question whi necessari anod voltag ? __label__lab_guide_question whi doe electron emiss ? __label__lab_guide_question describ cathod temperatur ? __label__lab_guide_question thermion emiss ? __label__lab_guide_question anod voltag ? __label__lab_guide_question happen keithley electromet ? __label__lab_guide_question whi doe thermion emiss ? __label__virtual_lab_manipulation turn electron emiss ? __label__lab_guide_question 's signific electron emiss ? __label__lab_guide_question dc power suppli ? __label__virtual_lab_manipulation record retard voltag ? __label__lab_guide_question 's signific electron emiss ? __label__lab_guide_question explain purpos mercuri vapor pressur ? __label__virtual_lab_manipulation measur dc power suppli ? __label__virtual_lab_manipulation check anod voltag ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question doe keithley electromet ? __label__lab_guide_question explain purpos mercuri vapor pressur ? __label__virtual_lab_manipulation increas first excit energi ? __label__lab_guide_question doe current collect electrod ? __label__virtual_lab_manipulation observ electron emiss ? __label__virtual_lab_manipulation set electron emiss ? __label__virtual_lab_manipulation increas electron emiss ? __label__lab_guide_question doe mercuri vapor pressur ? __label__virtual_lab_manipulation adjust anod voltag ? __label__lab_guide_question whi doe dc power suppli ? __label__virtual_lab_manipulation observ current collect electrod ? __label__virtual_lab_manipulation record electron emiss ? __label__lab_guide_question true electron emiss ? __label__virtual_lab_manipulation record anod voltag ? __label__virtual_lab_manipulation turn first excit energi ? __label__virtual_lab_manipulation power thermion emiss ? __label__lab_guide_question true electron emiss ? __label__virtual_lab_manipulation observ first excit energi ? __label__virtual_lab_manipulation observ keithley electromet ? __label__virtual_lab_manipulation power anod voltag ? __label__lab_guide_question true anod voltag ? __label__lab_guide_question explain purpos mercuri vapor pressur ? __label__lab_guide_question whi doe electron emiss ? __label__virtual_lab_manipulation measur retard voltag ? __label__lab_guide_question whi doe retard voltag ? __label__lab_guide_question true dc power suppli ? __label__lab_guide_question retard voltag ? __label__lab_guide_question true retard voltag ? __label__virtual_lab_manipulation measur mercuri vapor pressur ? __label__lab_guide_question 's signific thermion emiss ? __label__virtual_lab_manipulation measur thermion emiss ? __label__lab_guide_question describ retard voltag ? __label__lab_guide_question cathod temperatur ? __label__lab_guide_question true first excit energi ? __label__virtual_lab_manipulation measur dc power suppli ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__lab_guide_question true electron emiss ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__virtual_lab_manipulation record keithley electromet ? __label__virtual_lab_manipulation observ cathod temperatur ? __label__lab_guide_question thermion emiss ? __label__virtual_lab_manipulation increas retard voltag ? __label__virtual_lab_manipulation record electron emiss ? __label__virtual_lab_manipulation measur first excit energi ? __label__lab_guide_question whi necessari cathod temperatur ? __label__lab_guide_question happen electron emiss ? __label__virtual_lab_manipulation observ dc power suppli ? __label__lab_guide_question explain purpos retard voltag ? __label__lab_guide_question whi doe first excit energi ? __label__lab_guide_question doe cathod temperatur ? __label__lab_guide_question happen keithley electromet ? __label__lab_guide_question whi doe keithley electromet ? __label__lab_guide_question true current collect electrod ? __label__lab_guide_question whi necessari keithley electromet ? __label__virtual_lab_manipulation measur thermion emiss ? __label__lab_guide_question whi necessari retard voltag ? __label__virtual_lab_manipulation turn cathod temperatur ? __label__virtual_lab_manipulation power retard voltag ? __label__virtual_lab_manipulation increas cathod temperatur ? __label__lab_guide_question explain purpos dc power suppli ? __label__virtual_lab_manipulation power dc power suppli ? __label__lab_guide_question explain purpos anod voltag ? __label__virtual_lab_manipulation record electron emiss ? __label__lab_guide_question doe cathod temperatur ? __label__virtual_lab_manipulation set anod voltag ? __label__virtual_lab_manipulation measur electron emiss ? __label__virtual_lab_manipulation record cathod temperatur ? __label__virtual_lab_manipulation record electron emiss ? __label__lab_guide_question first excit energi ? __label__lab_guide_question mercuri vapor pressur ? __label__lab_guide_question whi necessari retard voltag ? __label__lab_guide_question explain purpos keithley electromet ? __label__virtual_lab_manipulation measur thermion emiss ? __label__virtual_lab_manipulation switch electron emiss ? __label__virtual_lab_manipulation increas first excit energi ? __label__virtual_lab_manipulation record first excit energi ? __label__lab_guide_question happen cathod temperatur ? __label__virtual_lab_manipulation check anod voltag ? __label__virtual_lab_manipulation check thermion emiss ? __label__lab_guide_question whi doe cathod temperatur ? __label__virtual_lab_manipulation record electron emiss ? __label__virtual_lab_manipulation increas anod voltag ? __label__lab_guide_question explain purpos mercuri vapor pressur ? __label__virtual_lab_manipulation switch retard voltag ? __label__lab_guide_question 's signific keithley electromet ? __label__lab_guide_question describ retard voltag ? __label__lab_guide_question describ thermion emiss ? __label__virtual_lab_manipulation check cathod temperatur ? __label__lab_guide_question explain purpos first excit energi ? __label__virtual_lab_manipulation switch anod voltag ? __label__virtual_lab_manipulation switch anod voltag ? __label__lab_guide_question whi doe dc power suppli ? __label__lab_guide_question doe keithley electromet ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__virtual_lab_manipulation check electron emiss ? __label__lab_guide_question retard voltag ? __label__lab_guide_question 's signific thermion emiss ? __label__lab_guide_question true first excit energi ? __label__virtual_lab_manipulation power anod voltag ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__lab_guide_question whi necessari thermion emiss ? __label__lab_guide_question describ keithley electromet ? __label__lab_guide_question first excit energi ? __label__virtual_lab_manipulation adjust cathod temperatur ? __label__virtual_lab_manipulation observ current collect electrod ? __label__virtual_lab_manipulation observ mercuri vapor pressur ? __label__lab_guide_question whi doe electron emiss ? __label__virtual_lab_manipulation set thermion emiss ? __label__lab_guide_question describ retard voltag ? __label__virtual_lab_manipulation set dc power suppli ? __label__lab_guide_question happen keithley electromet ? __label__lab_guide_question true mercuri vapor pressur ? __label__virtual_lab_manipulation record current collect electrod ? __label__lab_guide_question whi doe mercuri vapor pressur ? __label__virtual_lab_manipulation power current collect electrod ? __label__virtual_lab_manipulation set electron emiss ? __label__lab_guide_question doe keithley electromet ? __label__virtual_lab_manipulation record dc power suppli ? __label__virtual_lab_manipulation power dc power suppli ? __label__lab_guide_question anod voltag ? __label__lab_guide_question anod voltag ? __label__lab_guide_question first excit energi ? __label__lab_guide_question whi necessari thermion emiss ? __label__virtual_lab_manipulation measur keithley electromet ? __label__lab_guide_question true electron emiss ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation switch electron emiss ? __label__lab_guide_question doe first excit energi ? __label__virtual_lab_manipulation observ thermion emiss ? __label__virtual_lab_manipulation adjust mercuri vapor pressur ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__virtual_lab_manipulation increas keithley electromet ? __label__virtual_lab_manipulation power keithley electromet ? __label__lab_guide_question whi doe anod voltag ? __label__virtual_lab_manipulation adjust cathod temperatur ? __label__virtual_lab_manipulation measur retard voltag ? __label__lab_guide_question current collect electrod ? __label__lab_guide_question whi doe dc power suppli ? __label__lab_guide_question doe first excit energi ? __label__lab_guide_question explain purpos dc power suppli ? __label__lab_guide_question doe mercuri vapor pressur ? __label__virtual_lab_manipulation observ current collect electrod ? __label__virtual_lab_manipulation record keithley electromet ? __label__lab_guide_question whi necessari thermion emiss ? __label__lab_guide_question true dc power suppli ? __label__lab_guide_question 's signific current collect electrod ? __label__virtual_lab_manipulation measur anod voltag ? __label__lab_guide_question describ first excit energi ? __label__virtual_lab_manipulation record first excit energi ? __label__virtual_lab_manipulation check keithley electromet ? __label__virtual_lab_manipulation check anod voltag ? __label__virtual_lab_manipulation increas keithley electromet ? __label__lab_guide_question whi doe keithley electromet ? __label__lab_guide_question explain purpos electron emiss ? __label__virtual_lab_manipulation observ dc power suppli ? __label__lab_guide_question doe keithley electromet ? __label__virtual_lab_manipulation measur electron emiss ? __label__virtual_lab_manipulation increas electron emiss ? __label__virtual_lab_manipulation increas cathod temperatur ? __label__lab_guide_question explain purpos thermion emiss ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__virtual_lab_manipulation observ anod voltag ? __label__lab_guide_question doe cathod temperatur ? __label__virtual_lab_manipulation increas retard voltag ? __label__virtual_lab_manipulation power cathod temperatur ? __label__lab_guide_question explain purpos thermion emiss ? __label__virtual_lab_manipulation check mercuri vapor pressur ? __label__virtual_lab_manipulation turn first excit energi ? __label__virtual_lab_manipulation set dc power suppli ? __label__virtual_lab_manipulation measur first excit energi ? __label__lab_guide_question describ current collect electrod ? __label__lab_guide_question mercuri vapor pressur ? __label__lab_guide_question cathod temperatur ? __label__virtual_lab_manipulation set electron emiss ? __label__virtual_lab_manipulation turn cathod temperatur ? __label__lab_guide_question true anod voltag ? __label__virtual_lab_manipulation observ electron emiss ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question describ anod voltag ? __label__virtual_lab_manipulation record thermion emiss ? __label__virtual_lab_manipulation measur anod voltag ? __label__virtual_lab_manipulation measur anod voltag ? __label__lab_guide_question whi doe anod voltag ? __label__lab_guide_question cathod temperatur ? __label__lab_guide_question whi doe keithley electromet ? __label__virtual_lab_manipulation turn keithley electromet ? __label__virtual_lab_manipulation increas retard voltag ? __label__virtual_lab_manipulation power current collect electrod ? __label__virtual_lab_manipulation turn current collect electrod ? __label__virtual_lab_manipulation check dc power suppli ? __label__virtual_lab_manipulation turn keithley electromet ? __label__lab_guide_question 's signific cathod temperatur ? __label__lab_guide_question describ thermion emiss ? __label__lab_guide_question true dc power suppli ? __label__lab_guide_question happen cathod temperatur ? __label__virtual_lab_manipulation record retard voltag ? __label__virtual_lab_manipulation increas electron emiss ? __label__virtual_lab_manipulation turn current collect electrod ? __label__lab_guide_question explain purpos electron emiss ? __label__virtual_lab_manipulation observ cathod temperatur ? __label__virtual_lab_manipulation increas cathod temperatur ? __label__lab_guide_question 's signific thermion emiss ? __label__lab_guide_question retard voltag ? __label__virtual_lab_manipulation power dc power suppli ? __label__virtual_lab_manipulation observ electron emiss ? __label__virtual_lab_manipulation turn first excit energi ? __label__virtual_lab_manipulation record thermion emiss ? __label__lab_guide_question describ dc power suppli ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation check retard voltag ? __label__virtual_lab_manipulation switch electron emiss ? __label__virtual_lab_manipulation record thermion emiss ? __label__lab_guide_question doe cathod temperatur ? __label__lab_guide_question describ current collect electrod ? __label__virtual_lab_manipulation switch retard voltag ? __label__lab_guide_question doe dc power suppli ? __label__lab_guide_question current collect electrod ? __label__lab_guide_question true thermion emiss ? __label__virtual_lab_manipulation set anod voltag ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation adjust retard voltag ? __label__lab_guide_question whi doe first excit energi ? __label__virtual_lab_manipulation measur electron emiss ? __label__virtual_lab_manipulation power first excit energi ? __label__lab_guide_question whi doe keithley electromet ? __label__virtual_lab_manipulation measur thermion emiss ? __label__lab_guide_question describ thermion emiss ? __label__lab_guide_question dc power suppli ? __label__lab_guide_question doe thermion emiss ? __label__virtual_lab_manipulation set first excit energi ? __label__virtual_lab_manipulation switch first excit energi ? __label__virtual_lab_manipulation switch electron emiss ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__lab_guide_question doe cathod temperatur ? __label__virtual_lab_manipulation switch anod voltag ? __label__lab_guide_question true keithley electromet ? __label__virtual_lab_manipulation switch current collect electrod ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__virtual_lab_manipulation adjust thermion emiss ? __label__lab_guide_question happen thermion emiss ? __label__virtual_lab_manipulation turn electron emiss ? __label__lab_guide_question 's signific anod voltag ? __label__lab_guide_question whi doe thermion emiss ? __label__lab_guide_question happen keithley electromet ? __label__virtual_lab_manipulation power cathod temperatur ? __label__lab_guide_question whi necessari mercuri vapor pressur ? __label__virtual_lab_manipulation set electron emiss ? __label__lab_guide_question 's signific electron emiss ? __label__lab_guide_question doe anod voltag ? __label__lab_guide_question whi doe mercuri vapor pressur ? __label__lab_guide_question happen cathod temperatur ? __label__lab_guide_question happen anod voltag ? __label__lab_guide_question happen cathod temperatur ? __label__lab_guide_question explain purpos keithley electromet ? __label__lab_guide_question whi doe mercuri vapor pressur ? __label__virtual_lab_manipulation turn keithley electromet ? __label__virtual_lab_manipulation observ keithley electromet ? __label__virtual_lab_manipulation record current collect electrod ? __label__virtual_lab_manipulation increas retard voltag ? __label__lab_guide_question describ cathod temperatur ? __label__lab_guide_question thermion emiss ? __label__virtual_lab_manipulation observ retard voltag ? __label__virtual_lab_manipulation measur first excit energi ? __label__lab_guide_question current collect electrod ? __label__lab_guide_question happen mercuri vapor pressur ? __label__lab_guide_question explain purpos retard voltag ? __label__virtual_lab_manipulation power anod voltag ? __label__lab_guide_question whi doe keithley electromet ? __label__virtual_lab_manipulation set anod voltag ? __label__virtual_lab_manipulation record electron emiss ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__lab_guide_question happen electron emiss ? __label__lab_guide_question describ dc power suppli ? __label__lab_guide_question 's signific current collect electrod ? __label__lab_guide_question happen anod voltag ? __label__virtual_lab_manipulation measur dc power suppli ? __label__lab_guide_question doe current collect electrod ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question 's signific cathod temperatur ? __label__virtual_lab_manipulation observ keithley electromet ? __label__lab_guide_question first excit energi ? __label__lab_guide_question happen keithley electromet ? __label__virtual_lab_manipulation set dc power suppli ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__virtual_lab_manipulation adjust thermion emiss ? __label__virtual_lab_manipulation increas electron emiss ? __label__virtual_lab_manipulation turn dc power suppli ? __label__virtual_lab_manipulation observ dc power suppli ? __label__virtual_lab_manipulation increas retard voltag ? __label__lab_guide_question 's signific dc power suppli ? __label__virtual_lab_manipulation power anod voltag ? __label__lab_guide_question describ first excit energi ? __label__lab_guide_question doe current collect electrod ? __label__lab_guide_question keithley electromet ? __label__lab_guide_question whi necessari first excit energi ? __label__lab_guide_question happen dc power suppli ? __label__virtual_lab_manipulation turn electron emiss ? __label__lab_guide_question doe dc power suppli ? __label__lab_guide_question cathod temperatur ? __label__virtual_lab_manipulation set keithley electromet ? __label__lab_guide_question true mercuri vapor pressur ? __label__lab_guide_question 's signific current collect electrod ? __label__virtual_lab_manipulation increas first excit energi ? __label__virtual_lab_manipulation record anod voltag ? __label__lab_guide_question retard voltag ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation adjust first excit energi ? __label__lab_guide_question whi doe retard voltag ? __label__virtual_lab_manipulation check keithley electromet ? __label__lab_guide_question whi necessari cathod temperatur ? __label__virtual_lab_manipulation power cathod temperatur ? __label__lab_guide_question happen mercuri vapor pressur ? __label__lab_guide_question happen electron emiss ? __label__lab_guide_question happen dc power suppli ? __label__lab_guide_question whi necessari current collect electrod ? __label__lab_guide_question true electron emiss ? __label__lab_guide_question retard voltag ? __label__virtual_lab_manipulation increas electron emiss ? __label__virtual_lab_manipulation record thermion emiss ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__lab_guide_question explain purpos keithley electromet ? __label__lab_guide_question true cathod temperatur ? __label__lab_guide_question whi doe anod voltag ? __label__virtual_lab_manipulation power dc power suppli ? __label__virtual_lab_manipulation turn current collect electrod ? __label__virtual_lab_manipulation switch first excit energi ? __label__lab_guide_question thermion emiss ? __label__virtual_lab_manipulation increas keithley electromet ? __label__virtual_lab_manipulation measur current collect electrod ? __label__virtual_lab_manipulation turn current collect electrod ? __label__lab_guide_question true keithley electromet ? __label__virtual_lab_manipulation turn mercuri vapor pressur ? __label__lab_guide_question whi doe current collect electrod ? __label__virtual_lab_manipulation switch electron emiss ? __label__virtual_lab_manipulation observ electron emiss ? __label__virtual_lab_manipulation observ electron emiss ? __label__lab_guide_question cathod temperatur ? __label__lab_guide_question whi necessari current collect electrod ? __label__virtual_lab_manipulation set cathod temperatur ? __label__lab_guide_question doe anod voltag ? __label__lab_guide_question describ dc power suppli ? __label__lab_guide_question describ current collect electrod ? __label__virtual_lab_manipulation turn retard voltag ? __label__lab_guide_question describ cathod temperatur ? __label__virtual_lab_manipulation check mercuri vapor pressur ? __label__lab_guide_question doe retard voltag ? __label__lab_guide_question 's signific dc power suppli ? __label__virtual_lab_manipulation record mercuri vapor pressur ? __label__virtual_lab_manipulation check anod voltag ? __label__lab_guide_question true retard voltag ? __label__lab_guide_question 's signific anod voltag ? __label__virtual_lab_manipulation check cathod temperatur ? __label__lab_guide_question describ electron emiss ? __label__lab_guide_question mercuri vapor pressur ? __label__virtual_lab_manipulation record thermion emiss ? __label__virtual_lab_manipulation set current collect electrod ? __label__lab_guide_question whi doe current collect electrod ? __label__virtual_lab_manipulation observ first excit energi ? __label__lab_guide_question true current collect electrod ? __label__virtual_lab_manipulation adjust thermion emiss ? __label__lab_guide_question whi necessari dc power suppli ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__virtual_lab_manipulation increas keithley electromet ? __label__lab_guide_question happen anod voltag ? __label__lab_guide_question explain purpos mercuri vapor pressur ? __label__lab_guide_question whi doe retard voltag ? __label__virtual_lab_manipulation record keithley electromet ? __label__virtual_lab_manipulation turn cathod temperatur ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__virtual_lab_manipulation observ first excit energi ? __label__virtual_lab_manipulation observ keithley electromet ? __label__virtual_lab_manipulation switch first excit energi ? __label__lab_guide_question whi doe dc power suppli ? __label__virtual_lab_manipulation observ mercuri vapor pressur ? __label__virtual_lab_manipulation observ electron emiss ? __label__virtual_lab_manipulation increas electron emiss ? __label__virtual_lab_manipulation adjust mercuri vapor pressur ? __label__virtual_lab_manipulation record mercuri vapor pressur ? __label__lab_guide_question doe anod voltag ? __label__virtual_lab_manipulation power cathod temperatur ? __label__lab_guide_question whi doe first excit energi ? __label__lab_guide_question true retard voltag ? __label__lab_guide_question whi doe thermion emiss ? __label__lab_guide_question 's signific keithley electromet ? __label__lab_guide_question explain purpos keithley electromet ? __label__lab_guide_question true keithley electromet ? __label__virtual_lab_manipulation set anod voltag ? __label__virtual_lab_manipulation check thermion emiss ? __label__virtual_lab_manipulation set electron emiss ? __label__lab_guide_question whi doe anod voltag ? __label__lab_guide_question first excit energi ? __label__lab_guide_question 's signific dc power suppli ? __label__lab_guide_question happen cathod temperatur ? __label__lab_guide_question current collect electrod ? __label__virtual_lab_manipulation adjust keithley electromet ? __label__virtual_lab_manipulation turn dc power suppli ? __label__virtual_lab_manipulation increas retard voltag ? __label__virtual_lab_manipulation check current collect electrod ? __label__lab_guide_question 's signific first excit energi ? __label__lab_guide_question whi doe first excit energi ? __label__virtual_lab_manipulation check electron emiss ? __label__virtual_lab_manipulation set anod voltag ? __label__virtual_lab_manipulation adjust retard voltag ? __label__lab_guide_question describ anod voltag ? __label__virtual_lab_manipulation switch keithley electromet ? __label__lab_guide_question 's signific keithley electromet ? __label__virtual_lab_manipulation record retard voltag ? __label__lab_guide_question keithley electromet ? __label__lab_guide_question happen anod voltag ? __label__virtual_lab_manipulation measur dc power suppli ? __label__virtual_lab_manipulation adjust retard voltag ? __label__lab_guide_question electron emiss ? __label__virtual_lab_manipulation increas electron emiss ? __label__virtual_lab_manipulation switch first excit energi ? __label__virtual_lab_manipulation turn keithley electromet ? __label__virtual_lab_manipulation set thermion emiss ? __label__virtual_lab_manipulation adjust electron emiss ? __label__lab_guide_question happen dc power suppli ? __label__virtual_lab_manipulation turn mercuri vapor pressur ? __label__virtual_lab_manipulation increas mercuri vapor pressur ? __label__virtual_lab_manipulation switch dc power suppli ? __label__virtual_lab_manipulation switch cathod temperatur ? __label__virtual_lab_manipulation adjust mercuri vapor pressur ? __label__virtual_lab_manipulation switch retard voltag ? __label__lab_guide_question describ mercuri vapor pressur ? __label__virtual_lab_manipulation measur keithley electromet ? __label__lab_guide_question doe current collect electrod ? __label__lab_guide_question 's signific cathod temperatur ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question whi necessari keithley electromet ? __label__lab_guide_question whi necessari cathod temperatur ? __label__virtual_lab_manipulation record retard voltag ? __label__lab_guide_question doe dc power suppli ? __label__lab_guide_question 's signific current collect electrod ? __label__virtual_lab_manipulation record thermion emiss ? __label__lab_guide_question happen dc power suppli ? __label__virtual_lab_manipulation adjust keithley electromet ? __label__virtual_lab_manipulation increas mercuri vapor pressur ? __label__virtual_lab_manipulation power retard voltag ? __label__lab_guide_question explain purpos dc power suppli ? __label__lab_guide_question cathod temperatur ? __label__lab_guide_question explain purpos current collect electrod ? __label__lab_guide_question describ keithley electromet ? __label__virtual_lab_manipulation power thermion emiss ? __label__virtual_lab_manipulation power anod voltag ? __label__lab_guide_question true first excit energi ? __label__lab_guide_question true dc power suppli ? __label__virtual_lab_manipulation set cathod temperatur ? __label__virtual_lab_manipulation switch thermion emiss ? __label__lab_guide_question keithley electromet ? __label__lab_guide_question happen current collect electrod ? __label__virtual_lab_manipulation adjust current collect electrod ? __label__lab_guide_question anod voltag ? __label__lab_guide_question explain purpos retard voltag ? __label__lab_guide_question explain purpos electron emiss ? __label__virtual_lab_manipulation measur first excit energi ? __label__lab_guide_question retard voltag ? __label__virtual_lab_manipulation increas thermion emiss ? __label__virtual_lab_manipulation check first excit energi ? __label__virtual_lab_manipulation adjust current collect electrod ? __label__virtual_lab_manipulation power dc power suppli ? __label__lab_guide_question electron emiss ? __label__virtual_lab_manipulation increas anod voltag ? __label__virtual_lab_manipulation measur thermion emiss ? __label__lab_guide_question describ thermion emiss ? __label__lab_guide_question 's signific mercuri vapor pressur ? __label__lab_guide_question true dc power suppli ? __label__lab_guide_question whi necessari dc power suppli ? __label__lab_guide_question explain purpos anod voltag ? __label__lab_guide_question doe keithley electromet ? __label__lab_guide_question happen electron emiss ? __label__virtual_lab_manipulation switch mercuri vapor pressur ? __label__lab_guide_question true thermion emiss ? __label__virtual_lab_manipulation turn first excit energi ? __label__lab_guide_question whi doe retard voltag ? __label__virtual_lab_manipulation observ mercuri vapor pressur ? __label__virtual_lab_manipulation power current collect electrod ? __label__lab_guide_question true thermion emiss ? __label__lab_guide_question electron emiss ? __label__virtual_lab_manipulation power retard voltag ? __label__lab_guide_question whi necessari keithley electromet ? __label__virtual_lab_manipulation check keithley electromet ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation check retard voltag ? __label__virtual_lab_manipulation record anod voltag ? __label__virtual_lab_manipulation switch dc power suppli ? __label__lab_guide_question doe electron emiss ? __label__lab_guide_question whi necessari current collect electrod ? __label__lab_guide_question anod voltag ? __label__lab_guide_question whi necessari dc power suppli ? __label__virtual_lab_manipulation increas keithley electromet ? __label__lab_guide_question happen anod voltag ? __label__virtual_lab_manipulation check thermion emiss ? __label__lab_guide_question describ cathod temperatur ? __label__virtual_lab_manipulation observ anod voltag ? __label__lab_guide_question explain purpos mercuri vapor pressur ? __label__virtual_lab_manipulation measur thermion emiss ? __label__virtual_lab_manipulation observ keithley electromet ? __label__virtual_lab_manipulation measur electron emiss ? __label__lab_guide_question true first excit energi ? __label__lab_guide_question whi necessari electron emiss ? __label__virtual_lab_manipulation turn electron emiss ? __label__lab_guide_question 's signific cathod temperatur ? __label__virtual_lab_manipulation check first excit energi ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation turn cathod temperatur ? __label__lab_guide_question whi doe thermion emiss ? __label__lab_guide_question explain purpos thermion emiss ? __label__lab_guide_question whi necessari cathod temperatur ? __label__virtual_lab_manipulation set current collect electrod ? __label__lab_guide_question 's signific electron emiss ? __label__lab_guide_question dc power suppli ? __label__lab_guide_question 's signific current collect electrod ? __label__lab_guide_question retard voltag ? __label__virtual_lab_manipulation observ retard voltag ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question explain purpos dc power suppli ? __label__virtual_lab_manipulation set current collect electrod ? __label__lab_guide_question whi doe current collect electrod ? __label__virtual_lab_manipulation check mercuri vapor pressur ? __label__lab_guide_question whi doe keithley electromet ? __label__lab_guide_question explain purpos keithley electromet ? __label__virtual_lab_manipulation power retard voltag ? __label__lab_guide_question happen first excit energi ? __label__virtual_lab_manipulation adjust keithley electromet ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__lab_guide_question 's signific current collect electrod ? __label__lab_guide_question true first excit energi ? __label__virtual_lab_manipulation record anod voltag ? __label__lab_guide_question whi doe retard voltag ? __label__virtual_lab_manipulation switch electron emiss ? __label__lab_guide_question describ anod voltag ? __label__virtual_lab_manipulation measur current collect electrod ? __label__virtual_lab_manipulation check thermion emiss ? __label__virtual_lab_manipulation set current collect electrod ? __label__lab_guide_question explain purpos electron emiss ? __label__virtual_lab_manipulation turn retard voltag ? __label__virtual_lab_manipulation measur first excit energi ? __label__virtual_lab_manipulation record retard voltag ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation switch current collect electrod ? __label__lab_guide_question describ keithley electromet ? __label__lab_guide_question happen current collect electrod ? __label__lab_guide_question describ current collect electrod ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__lab_guide_question true retard voltag ? __label__virtual_lab_manipulation power keithley electromet ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__lab_guide_question whi necessari cathod temperatur ? __label__lab_guide_question true cathod temperatur ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation power first excit energi ? __label__virtual_lab_manipulation turn dc power suppli ? __label__lab_guide_question doe mercuri vapor pressur ? __label__virtual_lab_manipulation set mercuri vapor pressur ? __label__virtual_lab_manipulation observ electron emiss ? __label__virtual_lab_manipulation record mercuri vapor pressur ? __label__virtual_lab_manipulation adjust keithley electromet ? __label__lab_guide_question 's signific thermion emiss ? __label__virtual_lab_manipulation measur retard voltag ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__lab_guide_question whi doe keithley electromet ? __label__lab_guide_question doe thermion emiss ? __label__virtual_lab_manipulation turn dc power suppli ? __label__lab_guide_question 's signific cathod temperatur ? __label__lab_guide_question whi doe thermion emiss ? __label__lab_guide_question describ keithley electromet ? __label__lab_guide_question whi necessari current collect electrod ? __label__lab_guide_question true current collect electrod ? __label__lab_guide_question doe thermion emiss ? __label__lab_guide_question dc power suppli ? __label__lab_guide_question mercuri vapor pressur ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__virtual_lab_manipulation turn current collect electrod ? __label__virtual_lab_manipulation turn first excit energi ? __label__lab_guide_question whi necessari keithley electromet ? __label__lab_guide_question electron emiss ? __label__lab_guide_question explain purpos retard voltag ? __label__lab_guide_question true retard voltag ? __label__lab_guide_question anod voltag ? __label__virtual_lab_manipulation adjust cathod temperatur ? __label__lab_guide_question happen keithley electromet ? __label__lab_guide_question true current collect electrod ? __label__lab_guide_question doe mercuri vapor pressur ? __label__lab_guide_question whi necessari dc power suppli ? __label__lab_guide_question whi doe first excit energi ? __label__virtual_lab_manipulation record first excit energi ? __label__lab_guide_question dc power suppli ? __label__lab_guide_question true cathod temperatur ? __label__lab_guide_question current collect electrod ? __label__virtual_lab_manipulation switch keithley electromet ? __label__lab_guide_question cathod temperatur ? __label__lab_guide_question retard voltag ? __label__lab_guide_question happen cathod temperatur ? __label__lab_guide_question explain purpos electron emiss ? __label__lab_guide_question whi necessari retard voltag ? __label__virtual_lab_manipulation set anod voltag ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation set anod voltag ? __label__lab_guide_question whi doe cathod temperatur ? __label__lab_guide_question describ current collect electrod ? __label__virtual_lab_manipulation set thermion emiss ? __label__lab_guide_question doe mercuri vapor pressur ? __label__lab_guide_question true dc power suppli ? __label__virtual_lab_manipulation switch electron emiss ? __label__virtual_lab_manipulation observ current collect electrod ? __label__lab_guide_question doe mercuri vapor pressur ? __label__lab_guide_question true cathod temperatur ? __label__lab_guide_question whi doe electron emiss ? __label__virtual_lab_manipulation check thermion emiss ? __label__virtual_lab_manipulation set cathod temperatur ? __label__lab_guide_question cathod temperatur ? __label__virtual_lab_manipulation turn cathod temperatur ? __label__virtual_lab_manipulation adjust mercuri vapor pressur ? __label__virtual_lab_manipulation check thermion emiss ? __label__virtual_lab_manipulation record current collect electrod ? __label__lab_guide_question 's signific cathod temperatur ? __label__lab_guide_question current collect electrod ? __label__virtual_lab_manipulation set cathod temperatur ? __label__lab_guide_question whi necessari keithley electromet ? __label__lab_guide_question explain purpos keithley electromet ? __label__virtual_lab_manipulation observ electron emiss ? __label__lab_guide_question doe dc power suppli ? __label__lab_guide_question explain purpos cathod temperatur ? __label__lab_guide_question whi doe keithley electromet ? __label__virtual_lab_manipulation observ electron emiss ? __label__lab_guide_question describ electron emiss ? __label__virtual_lab_manipulation turn thermion emiss ? __label__virtual_lab_manipulation record current collect electrod ? __label__lab_guide_question anod voltag ? __label__virtual_lab_manipulation turn keithley electromet ? __label__lab_guide_question doe mercuri vapor pressur ? __label__virtual_lab_manipulation measur thermion emiss ? __label__virtual_lab_manipulation increas anod voltag ? __label__lab_guide_question 's signific current collect electrod ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question explain purpos retard voltag ? __label__lab_guide_question happen first excit energi ? __label__virtual_lab_manipulation turn retard voltag ? __label__virtual_lab_manipulation increas retard voltag ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__virtual_lab_manipulation measur keithley electromet ? __label__lab_guide_question anod voltag ? __label__virtual_lab_manipulation record keithley electromet ? __label__virtual_lab_manipulation adjust anod voltag ? __label__lab_guide_question whi doe first excit energi ? __label__virtual_lab_manipulation set keithley electromet ? __label__lab_guide_question keithley electromet ? __label__lab_guide_question happen retard voltag ? __label__virtual_lab_manipulation turn retard voltag ? __label__lab_guide_question happen thermion emiss ? __label__lab_guide_question first excit energi ? __label__lab_guide_question describ anod voltag ? __label__lab_guide_question explain purpos current collect electrod ? __label__virtual_lab_manipulation power cathod temperatur ? __label__lab_guide_question doe cathod temperatur ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation check electron emiss ? __label__virtual_lab_manipulation adjust electron emiss ? __label__virtual_lab_manipulation power cathod temperatur ? __label__lab_guide_question whi necessari first excit energi ? __label__virtual_lab_manipulation switch retard voltag ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__virtual_lab_manipulation switch cathod temperatur ? __label__lab_guide_question whi necessari cathod temperatur ? __label__virtual_lab_manipulation record current collect electrod ? __label__lab_guide_question doe mercuri vapor pressur ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__virtual_lab_manipulation check electron emiss ? __label__virtual_lab_manipulation observ current collect electrod ? __label__virtual_lab_manipulation record electron emiss ? __label__virtual_lab_manipulation increas current collect electrod ? __label__virtual_lab_manipulation check cathod temperatur ? __label__lab_guide_question explain purpos thermion emiss ? __label__lab_guide_question explain purpos thermion emiss ? __label__virtual_lab_manipulation observ mercuri vapor pressur ? __label__lab_guide_question dc power suppli ? __label__virtual_lab_manipulation switch dc power suppli ? __label__virtual_lab_manipulation increas anod voltag ? __label__virtual_lab_manipulation switch electron emiss ? __label__lab_guide_question 's signific first excit energi ? __label__lab_guide_question whi necessari dc power suppli ? __label__virtual_lab_manipulation adjust retard voltag ? __label__virtual_lab_manipulation adjust mercuri vapor pressur ? __label__lab_guide_question true anod voltag ? __label__lab_guide_question happen keithley electromet ? __label__virtual_lab_manipulation check anod voltag ? __label__lab_guide_question describ dc power suppli ? __label__lab_guide_question happen retard voltag ? __label__virtual_lab_manipulation measur thermion emiss ? __label__virtual_lab_manipulation observ dc power suppli ? __label__virtual_lab_manipulation set anod voltag ? __label__lab_guide_question doe dc power suppli ? __label__virtual_lab_manipulation increas cathod temperatur ? __label__virtual_lab_manipulation observ anod voltag ? __label__lab_guide_question whi necessari electron emiss ? __label__lab_guide_question dc power suppli ? __label__lab_guide_question true current collect electrod ? __label__lab_guide_question whi necessari first excit energi ? __label__virtual_lab_manipulation adjust current collect electrod ? __label__virtual_lab_manipulation increas first excit energi ? __label__lab_guide_question whi doe electron emiss ? __label__lab_guide_question doe cathod temperatur ? __label__lab_guide_question happen keithley electromet ? __label__lab_guide_question cathod temperatur ? __label__lab_guide_question mercuri vapor pressur ? __label__lab_guide_question explain purpos anod voltag ? __label__lab_guide_question first excit energi ? __label__virtual_lab_manipulation adjust retard voltag ? __label__virtual_lab_manipulation increas mercuri vapor pressur ? __label__virtual_lab_manipulation observ keithley electromet ? __label__lab_guide_question mercuri vapor pressur ? __label__lab_guide_question describ mercuri vapor pressur ? __label__virtual_lab_manipulation check electron emiss ? __label__lab_guide_question doe anod voltag ? __label__lab_guide_question 's signific thermion emiss ? __label__virtual_lab_manipulation check keithley electromet ? __label__virtual_lab_manipulation set thermion emiss ? __label__virtual_lab_manipulation observ dc power suppli ? __label__lab_guide_question happen current collect electrod ? __label__lab_guide_question whi doe electron emiss ? __label__lab_guide_question true thermion emiss ? __label__lab_guide_question whi necessari current collect electrod ? __label__lab_guide_question doe mercuri vapor pressur ? __label__virtual_lab_manipulation measur thermion emiss ? __label__virtual_lab_manipulation switch current collect electrod ? __label__lab_guide_question explain purpos electron emiss ? __label__virtual_lab_manipulation record thermion emiss ? __label__virtual_lab_manipulation power mercuri vapor pressur ? __label__lab_guide_question cathod temperatur ? __label__virtual_lab_manipulation observ first excit energi ? __label__virtual_lab_manipulation observ first excit energi ? __label__virtual_lab_manipulation turn electron emiss ? __label__lab_guide_question whi necessari thermion emiss ? __label__lab_guide_question current collect electrod ? __label__virtual_lab_manipulation adjust anod voltag ? __label__lab_guide_question 's signific dc power suppli ? __label__lab_guide_question mercuri vapor pressur ? __label__lab_guide_question happen cathod temperatur ? __label__virtual_lab_manipulation switch anod voltag ? __label__virtual_lab_manipulation turn anod voltag ? __label__virtual_lab_manipulation power keithley electromet ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__lab_guide_question 's signific dc power suppli ? __label__virtual_lab_manipulation power thermion emiss ? __label__lab_guide_question retard voltag ? __label__virtual_lab_manipulation measur electron emiss ? __label__lab_guide_question whi necessari current collect electrod ? __label__lab_guide_question whi necessari cathod temperatur ? __label__virtual_lab_manipulation adjust retard voltag ? __label__virtual_lab_manipulation turn electron emiss ? __label__virtual_lab_manipulation adjust mercuri vapor pressur ? __label__virtual_lab_manipulation increas anod voltag ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question retard voltag ? __label__virtual_lab_manipulation check mercuri vapor pressur ? __label__virtual_lab_manipulation record mercuri vapor pressur ? __label__lab_guide_question describ first excit energi ? __label__virtual_lab_manipulation measur current collect electrod ? __label__lab_guide_question whi necessari keithley electromet ? __label__lab_guide_question describ mercuri vapor pressur ? __label__lab_guide_question true keithley electromet ? __label__virtual_lab_manipulation increas thermion emiss ? __label__lab_guide_question explain purpos cathod temperatur ? __label__virtual_lab_manipulation measur first excit energi ? __label__lab_guide_question explain purpos retard voltag ? __label__lab_guide_question whi necessari first excit energi ? __label__virtual_lab_manipulation observ keithley electromet ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__lab_guide_question describ retard voltag ? __label__lab_guide_question current collect electrod ? __label__lab_guide_question whi necessari anod voltag ? __label__virtual_lab_manipulation turn cathod temperatur ? __label__lab_guide_question doe cathod temperatur ? __label__lab_guide_question dc power suppli ? __label__virtual_lab_manipulation observ retard voltag ? __label__virtual_lab_manipulation switch keithley electromet ? __label__virtual_lab_manipulation measur retard voltag ? __label__virtual_lab_manipulation turn retard voltag ? __label__virtual_lab_manipulation power electron emiss ? __label__virtual_lab_manipulation increas electron emiss ? __label__lab_guide_question true current collect electrod ? __label__lab_guide_question 's signific keithley electromet ? __label__virtual_lab_manipulation adjust electron emiss ? __label__lab_guide_question 's signific thermion emiss ? __label__virtual_lab_manipulation adjust cathod temperatur ? __label__lab_guide_question whi necessari mercuri vapor pressur ? __label__virtual_lab_manipulation power cathod temperatur ? __label__lab_guide_question first excit energi ? __label__virtual_lab_manipulation record dc power suppli ? __label__lab_guide_question whi necessari electron emiss ? __label__lab_guide_question thermion emiss ? __label__lab_guide_question happen thermion emiss ? __label__lab_guide_question explain purpos first excit energi ? __label__lab_guide_question happen retard voltag ? __label__virtual_lab_manipulation adjust thermion emiss ? __label__virtual_lab_manipulation observ retard voltag ? __label__virtual_lab_manipulation switch keithley electromet ? __label__lab_guide_question true electron emiss ? __label__virtual_lab_manipulation set retard voltag ? __label__lab_guide_question dc power suppli ? __label__lab_guide_question mercuri vapor pressur ? __label__virtual_lab_manipulation record thermion emiss ? __label__virtual_lab_manipulation set electron emiss ? __label__virtual_lab_manipulation measur cathod temperatur ? __label__lab_guide_question happen retard voltag ? __label__lab_guide_question keithley electromet ? __label__virtual_lab_manipulation observ current collect electrod ? __label__virtual_lab_manipulation increas first excit energi ? __label__virtual_lab_manipulation observ retard voltag ? __label__virtual_lab_manipulation check keithley electromet ? __label__lab_guide_question 's signific electron emiss ? __label__lab_guide_question describ first excit energi ? __label__virtual_lab_manipulation switch anod voltag ? __label__lab_guide_question whi necessari cathod temperatur ? __label__lab_guide_question happen electron emiss ? __label__lab_guide_question whi necessari cathod temperatur ? __label__lab_guide_question anod voltag ? __label__virtual_lab_manipulation switch dc power suppli ? __label__virtual_lab_manipulation check keithley electromet ? __label__lab_guide_question doe thermion emiss ? __label__virtual_lab_manipulation record first excit energi ? __label__lab_guide_question anod voltag ? __label__lab_guide_question electron emiss ? __label__lab_guide_question doe mercuri vapor pressur ? __label__lab_guide_question whi necessari retard voltag ? __label__virtual_lab_manipulation check dc power suppli ? __label__virtual_lab_manipulation record retard voltag ? __label__lab_guide_question happen retard voltag ? __label__lab_guide_question happen current collect electrod ? __label__virtual_lab_manipulation power anod voltag ? __label__virtual_lab_manipulation increas thermion emiss ? __label__virtual_lab_manipulation record first excit energi ? __label__lab_guide_question explain purpos electron emiss ? __label__lab_guide_question whi necessari current collect electrod ? __label__lab_guide_question doe thermion emiss ? __label__virtual_lab_manipulation check retard voltag ? __label__lab_guide_question whi necessari electron emiss ? __label__virtual_lab_manipulation adjust anod voltag ? __label__lab_guide_question true cathod temperatur ? __label__virtual_lab_manipulation power keithley electromet ? __label__virtual_lab_manipulation set retard voltag ? __label__virtual_lab_manipulation turn mercuri vapor pressur ? __label__virtual_lab_manipulation adjust dc power suppli ? __label__lab_guide_question 's signific cathod temperatur ? __label__virtual_lab_manipulation set cathod temperatur ? __label__virtual_lab_manipulation check mercuri vapor pressur ? __label__lab_guide_question happen retard voltag ? __label__virtual_lab_manipulation check thermion emiss ? __label__virtual_lab_manipulation turn first excit energi ? __label__virtual_lab_manipulation increas thermion emiss ? __label__lab_guide_question describ electron emiss ? __label__virtual_lab_manipulation check first excit energi ? __label__lab_guide_question whi doe retard voltag ? __label__virtual_lab_manipulation record thermion emiss ? __label__virtual_lab_manipulation increas first excit energi ? __label__virtual_lab_manipulation adjust electron emiss ? __label__virtual_lab_manipulation observ anod voltag ? __label__lab_guide_question keithley electromet ? __label__virtual_lab_manipulation set current collect electrod ? __label__virtual_lab_manipulation turn thermion emiss ? __label__lab_guide_question true anod voltag ? __label__lab_guide_question doe anod voltag ? __label__virtual_lab_manipulation set dc power suppli ? __label__lab_guide_question doe electron emiss ? __label__virtual_lab_manipulation measur anod voltag ? __label__lab_guide_question happen retard voltag ? __label__virtual_lab_manipulation switch thermion emiss ? __label__lab_guide_question electron emiss ? __label__virtual_lab_manipulation record electron emiss ? __label__lab_guide_question explain purpos cathod temperatur ? __label__virtual_lab_manipulation record thermion emiss ? __label__virtual_lab_manipulation switch cathod temperatur ? __label__lab_guide_question 's signific first excit energi ? __label__lab_guide_question whi necessari electron emiss ? __label__virtual_lab_manipulation observ first excit energi ? __label__virtual_lab_manipulation measur mercuri vapor pressur ? __label__virtual_lab_manipulation record cathod temperatur ? __label__lab_guide_question thermion emiss ? __label__virtual_lab_manipulation increas current collect electrod ? __label__virtual_lab_manipulation record dc power suppli ? __label__virtual_lab_manipulation observ keithley electromet ? __label__lab_guide_question dc power suppli ? __label__lab_guide_question whi doe electron emiss ? __label__lab_guide_question mercuri vapor pressur ? __label__virtual_lab_manipulation power anod voltag ? __label__lab_guide_question explain purpos keithley electromet ? __label__virtual_lab_manipulation switch anod voltag ? __label__virtual_lab_manipulation set electron emiss ? __label__lab_guide_question describ electron emiss ? __label__virtual_lab_manipulation observ dc power suppli ? __label__lab_guide_question anod voltag ? __label__lab_guide_question explain purpos electron emiss ? __label__lab_guide_question happen electron emiss ? __label__lab_guide_question electron emiss ? __label__lab_guide_question explain purpos anod voltag ? __label__lab_guide_question doe retard voltag ? __label__lab_guide_question doe cathod temperatur ? __label__lab_guide_question explain purpos keithley electromet ? __label__lab_guide_question 's signific dc power suppli ? __label__lab_guide_question 's signific thermion emiss ? __label__lab_guide_question describ keithley electromet ? __label__virtual_lab_manipulation set cathod temperatur ? __label__virtual_lab_manipulation adjust mercuri vapor pressur ? __label__lab_guide_question doe cathod temperatur ? __label__lab_guide_question 's signific thermion emiss ? __label__lab_guide_question true dc power suppli ? __label__lab_guide_question describ mercuri vapor pressur ? __label__virtual_lab_manipulation check keithley electromet ? __label__lab_guide_question doe electron emiss ? __label__virtual_lab_manipulation adjust filament variac knob . __label__virtual_lab_manipulation turn filament . __label__virtual_lab_manipulation adjust filament variac knob . __label__lab_guide_question doe retard voltag ? __label__lab_guide_question explain purpos franck-hertz experi ? __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation power oven variac . __label__virtual_lab_manipulation reduc filament current . __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation find vvr measur . __label__virtual_lab_manipulation adjust filament variac knob . __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__lab_guide_question safeti precaut handl mercuri ? __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question unit keithley electromet read ? __label__virtual_lab_manipulation turn filament . __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question atom weight mercuri ? __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question atom weight mercuri ? __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation set oven 300 degre . __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation power oven variac . __label__virtual_lab_manipulation switch data camera view . __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__virtual_lab_manipulation turn dc power suppli . __label__lab_guide_question signific quantiz energi level ? __label__lab_guide_question whi vacuum tube use setup ? __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question atom weight mercuri ? __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation switch data camera view . __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__lab_guide_question doe electromet measur ? __label__lab_guide_question signific quantiz energi level ? __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation check temperatur furnac . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__virtual_lab_manipulation reduc filament current . __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation adjust filament variac knob . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__virtual_lab_manipulation turn filament . __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question whi observ discret drop current dure experi ? __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation find vvr measur . __label__virtual_lab_manipulation adjust filament variac knob . __label__virtual_lab_manipulation switch tube camera . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question unit keithley electromet read ? __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question explain concept thermion emiss . __label__virtual_lab_manipulation power oven variac . __label__lab_guide_question measur first excit energi mercuri ? __label__virtual_lab_manipulation adjust filament variac knob . __label__virtual_lab_manipulation turn filament . __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation set oven 300 degre . __label__virtual_lab_manipulation start record electromet current . __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation reset electromet zero check . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__virtual_lab_manipulation perform zero correct electromet . __label__lab_guide_question elabor role filament cathod ? __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation power oven variac . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation turn filament . __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__virtual_lab_manipulation check temperatur furnac . __label__lab_guide_question doe retard voltag ? __label__lab_guide_question doe retard voltag ? __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__virtual_lab_manipulation adjust filament variac knob . __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question doe dc power suppli affect experi ? __label__lab_guide_question doe dc power suppli affect experi ? __label__lab_guide_question whi vacuum tube use setup ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation power oven variac . __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question explain concept thermion emiss . __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation check temperatur furnac . __label__lab_guide_question whi observ discret drop current dure experi ? __label__lab_guide_question doe dc power suppli affect experi ? __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question signific quantiz energi level ? __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation switch tube camera . __label__lab_guide_question whi vacuum tube use setup ? __label__lab_guide_question unit keithley electromet read ? __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation turn filament . __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation start record electromet current . __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question doe electromet measur ? __label__lab_guide_question whi observ discret drop current dure experi ? __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation switch tube camera . __label__lab_guide_question explain purpos franck-hertz experi ? __label__lab_guide_question signific quantiz energi level ? __label__lab_guide_question signific quantiz energi level ? __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation reduc filament current . __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation reduc filament current . __label__lab_guide_question explain purpos franck-hertz experi ? __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation start record electromet current . __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation turn filament . __label__lab_guide_question explain purpos franck-hertz experi ? __label__virtual_lab_manipulation start record electromet current . __label__lab_guide_question doe electromet measur ? __label__virtual_lab_manipulation power oven variac . __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question whi observ discret drop current dure experi ? __label__lab_guide_question elabor role filament cathod ? __label__lab_guide_question explain purpos franck-hertz experi ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question doe electromet measur ? __label__virtual_lab_manipulation turn dc power suppli . __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question temperatur reaction vessel ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question doe electromet measur ? __label__lab_guide_question measur first excit energi mercuri ? __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation adjust filament variac knob . __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question signific quantiz energi level ? __label__lab_guide_question explain concept thermion emiss . __label__lab_guide_question inelast collis context experi ? __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question signific quantiz energi level ? __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question whi observ discret drop current dure experi ? __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question atom weight mercuri ? __label__virtual_lab_manipulation start record electromet current . __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question doe retard voltag ? __label__lab_guide_question inelast collis context experi ? __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__lab_guide_question safeti precaut handl mercuri ? __label__virtual_lab_manipulation activ heat camera feed . __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question atom weight mercuri ? __label__lab_guide_question unit keithley electromet read ? __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation perform zero correct electromet . __label__lab_guide_question doe retard voltag ? __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question whi observ discret drop current dure experi ? __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question elabor role filament cathod ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation power oven variac . __label__lab_guide_question doe retard voltag ? __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question unit keithley electromet read ? __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__virtual_lab_manipulation set oven 300 degre . __label__lab_guide_question whi vacuum tube use setup ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation start record electromet current . __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation turn filament . __label__virtual_lab_manipulation turn filament . __label__virtual_lab_manipulation power oven variac . __label__virtual_lab_manipulation power oven variac . __label__virtual_lab_manipulation power oven variac . __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question safeti precaut handl mercuri ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question acceler voltag control ? __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question atom weight mercuri ? __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__lab_guide_question atom weight mercuri ? __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation turn dc power suppli . __label__lab_guide_question explain purpos franck-hertz experi ? __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation start record electromet current . __label__lab_guide_question explain purpos franck-hertz experi ? __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question whi observ discret drop current dure experi ? __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question measur first excit energi mercuri ? __label__virtual_lab_manipulation start record electromet current . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation start record electromet current . __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question doe dc power suppli affect experi ? __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation turn filament . __label__virtual_lab_manipulation turn dc power suppli . __label__lab_guide_question atom weight mercuri ? __label__lab_guide_question doe electromet measur ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__virtual_lab_manipulation reduc filament current . __label__lab_guide_question whi vacuum tube use setup ? __label__virtual_lab_manipulation power oven variac . __label__lab_guide_question whi vacuum tube use setup ? __label__lab_guide_question acceler voltag control ? __label__lab_guide_question inelast collis context experi ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question doe electromet measur ? __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question safeti precaut handl mercuri ? __label__virtual_lab_manipulation adjust filament variac knob . __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation activ heat camera feed . __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question explain concept thermion emiss . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__virtual_lab_manipulation set oven 300 degre . __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation check temperatur furnac . __label__lab_guide_question inelast collis context experi ? __label__virtual_lab_manipulation turn dc power suppli . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question acceler voltag control ? __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question unit keithley electromet read ? __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation adjust filament variac knob . __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__virtual_lab_manipulation set oven 300 degre . __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__virtual_lab_manipulation turn dc power suppli . __label__lab_guide_question explain concept thermion emiss . __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question safeti precaut handl mercuri ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question whi observ discret drop current dure experi ? __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__lab_guide_question whi need heat mercuri vacuum tube ? __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__virtual_lab_manipulation reduc filament current . __label__lab_guide_question doe electromet measur ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__virtual_lab_manipulation find vvr measur . __label__virtual_lab_manipulation monitor oven temperatur . __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question whi observ discret drop current dure experi ? __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation find vvr measur . __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question whi observ discret drop current dure experi ? __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question acceler voltag control ? __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question explain concept thermion emiss . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question safeti precaut handl mercuri ? __label__virtual_lab_manipulation activ heat camera feed . __label__lab_guide_question atom weight mercuri ? __label__lab_guide_question whi vacuum tube use setup ? __label__lab_guide_question explain purpos franck-hertz experi ? __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation turn filament . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question unit keithley electromet read ? __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question inelast collis context experi ? __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__lab_guide_question temperatur reaction vessel ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question signific quantiz energi level ? __label__lab_guide_question acceler voltag control ? __label__lab_guide_question explain concept thermion emiss . __label__virtual_lab_manipulation perform zero correct electromet . __label__virtual_lab_manipulation perform zero correct electromet . __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question temperatur reaction vessel ? __label__lab_guide_question signific quantiz energi level ? __label__lab_guide_question inelast collis context experi ? __label__virtual_lab_manipulation power oven variac . __label__lab_guide_question temperatur reaction vessel ? __label__lab_guide_question whi observ discret drop current dure experi ? __label__virtual_lab_manipulation activ heat camera feed . __label__lab_guide_question temperatur reaction vessel ? __label__lab_guide_question doe oven variac control temperatur ? __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question explain purpos franck-hertz experi ? __label__lab_guide_question explain purpos franck-hertz experi ? __label__lab_guide_question temperatur reaction vessel ? __label__virtual_lab_manipulation perform zero correct electromet . __label__lab_guide_question inelast collis context experi ? __label__virtual_lab_manipulation increas retard voltag 1.5 v . __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__virtual_lab_manipulation activ heat camera feed . __label__lab_guide_question elabor role filament cathod ? __label__lab_guide_question safeti precaut handl mercuri ? __label__lab_guide_question explain purpos franck-hertz experi ? __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation chang electromet rang 20 pa . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation find vvr measur . __label__virtual_lab_manipulation reset electromet zero check . __label__lab_guide_question measur first excit energi mercuri ? __label__virtual_lab_manipulation start record electromet current . __label__lab_guide_question whi mercuri atom show inelast collis ? __label__lab_guide_question unit keithley electromet read ? __label__lab_guide_question atom weight mercuri ? __label__virtual_lab_manipulation turn filament . __label__lab_guide_question whi observ discret drop current dure experi ? __label__lab_guide_question inelast collis context experi ? __label__lab_guide_question explain purpos franck-hertz experi ? __label__virtual_lab_manipulation start record electromet current . __label__virtual_lab_manipulation turn dc power suppli . __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question measur first excit energi mercuri ? __label__lab_guide_question whi mercuri use franck-hertz experi ? __label__lab_guide_question atom weight mercuri ? __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question whi observ discret drop current dure experi ? __label__lab_guide_question doe dc power suppli affect experi ? __label__lab_guide_question measur first excit energi mercuri ? __label__virtual_lab_manipulation check temperatur furnac . __label__virtual_lab_manipulation adjust variac stabl temperatur . __label__virtual_lab_manipulation switch data camera view . __label__lab_guide_question signific quantiz energi level ? __label__lab_guide_question whi mercuri atom show inelast collis ? __label__virtual_lab_manipulation turn dc power suppli . __label__virtual_lab_manipulation switch tube camera . __label__virtual_lab_manipulation start record electromet current . __label__virtual_lab_manipulation increas reaction chamber 's pressur . __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation reset electromet zero check . __label__virtual_lab_manipulation activ heat camera feed . __label__virtual_lab_manipulation reduc filament current . __label__virtual_lab_manipulation rotat va potentiomet clockwis . __label__virtual_lab_manipulation set oven 300 degre . __label__lab_guide_question doe electromet measur ? __label__virtual_lab_manipulation adjust filament variac knob . __label__virtual_lab_manipulation activ heat camera feed . __label__lab_guide_question acceler voltag control ? __label__virtual_lab_manipulation perform zero correct electromet . __label__lab_guide_question doe retard voltag ? __label__virtual_lab_manipulation monitor oven temperatur . __label__lab_guide_question whi observ discret drop current dure experi ? __label__lab_guide_question elabor role filament cathod ? __label__virtual_lab_manipulation reduc filament current . __label__lab_guide_question explain concept thermion emiss .