金属电子逸出功与荷质比的测量

√U a

lgIa1lgIa2lgIa3lgIa4lgIa54

-4.63827216-4.39794001-4.18708664-3.978810701-3.7851561525

-4.61978876-4.37675071-4.16749109-3.958607315-3.767003896

-4.60205999-4.35654732-4.14874165-3.943095149-3.7520267347

-4.58502665-4.34678749-4.13667714-3.928117993-3.737548918

-4.56863624-4.33254705-4.12205305-3.91721463-3.7258421519

-4.55284197-4.31875876-4.1079054-3.903089987-3.71444269110

-4.537602-4.30980392-4.09963287-3.89279003-3.70553377411

-4.52287875-4.30103-4.09151498-3.886056648-3.696803943lgI01lgI02lgI03lgI04lgI05-4.6525-4.4036-4.194-3.9854-3.7918灯丝电流If /A

0.60.620.640.660.68灯丝温度T/K

188019141945197820101/T

0.000482160.0004901960.0004975120.0005055610.000514139lgI0/T2-10.0573175-10.2240603-10.3981921-10.57785257-10.77183921

Ic/A Ic2Ua/V

0.0990.0098011

0.1180.0139242

0.1350.0182253

0.1520.0231044

0.168

0.183lgI0/T2和1/T的关系不同灯丝电流If与温度K的关系

lgIa6lgIa7Ia1Ia2Ia3Ia4

-3.598599459-3.417936637234065105 -3.580044252-3.399027104244268110 -3.563837353-3.384049948254471114 -3.55129368-3.370590401264573118 -3.539102157-3.359518563

-3.528708289-3.348721986

-3.518557371-3.339134522

-3.510041521-3.330683119

lgI06lgI07

-3.6048-3.4237

0.70.72

20402074

0.0005224660.000531915

-10.96748387-11.2008157

Ia5Ia6Ia7

164252382

171263399

177273413

183281426