大学物理实验报告测定金属荷质比与逸出功

表20-2数据记录表Ua/V9162536496481100If=0.7Ia/μA798388919598100103If=0.725135142149155160165170174If=0.750220235247258267275283291If=0.775353379400417432445457468If=0.8533595633662687708727746Ua/V9162536496481100If=0.7Ia/A0.0000790.0000830.0000880.0000910.0000950.0000980.00010.000103If=0.7250.0001350.0001420.0001490.0001550.000160.0001650.000170.000174If=0.7500.000220.0002350.0002470.0002580.0002670.0002750.0002830.000291If=0.7750.0003530.0003790.00040.0004170.0004320.0004450.0004570.000468If=0.80.0005330.0005950.0006330.0006620.0006870.0007080.0007270.000746整理后：表20-3数据记录表Ua½TLgIa345678910截距T=2040K-4.10-4.08-4.06-4.04-4.02-4.01-4.00-3.99-4.14T=2080K-3.87-3.85-3.83-3.81-3.80-3.78-3.77-3.76-3.91T=2120K-3.66-3.63-3.61-3.59-3.57-3.56-3.55-3.54-3.70T=2160K-3.45-3.42-3.40-3.38-3.36-3.35-3.34-3.33-3.49T=2200K-3.27-3.23-3.20-3.18-3.16-3.15-3.14-3.13-3.31表20-5数据记录表If=0.730AUa/V234567Is/AIa/μAIs/AIa/μAIs/AIa/μAIs/AIa/μAIs/AIa/μAIs/AIa/μA0.031230.051290.051330.051360.051390.051410.051230.061290.081330.081360.11390.111410.091230.11280.151330.21360.221390.21410.111230.1531270.1911310.2131340.2381370.2421410.1291200.161250.1931290.2151320.2411350.2571390.1321190.1631230.1951270.2171300.2421330.2581370.1351170.1681210.1961250.2191280.2431310.261350.1461100.181060.2061100.2281100.2461250.2621320.1511000.189860.213900.238800.2521100.2711150.156900.196700.22700.246600.259900.279900.161800.201550.228500.255400.266700.285700.166700.209400.235300.26300.273500.294450.17600.219250.247150.269200.283300.31200.176500.229150.254100.28100.296150.314150.181400.235100.26450.28950.302100.321100.188300.24750.31350.33150.196200.208100.2195表20-6数据记录表Ua/V234567Ia/4(μA)30.7532.