I1/mA | 0.120 | 0.125 | 0.130 | 0.135 | 0.140 | 0.145 |
I2/mA | 480 | 400 | 320 | 232 | 140 | 68 |
次数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
电流I/mA | 0 | 0 | 0.2 | 1.8 | 3.9 | 8.6 | 14.0 | 21.8 | 33.5 | 50.0 |
电压U/V | 0 | 0.50 | 0.75 | 1.00 | 1.25 | 1.50 | 1.75 | 2.00 | 2.25 | 2.50 |
A.待测滑动变阻器电阻Rx,总电阻约5 Ω |
B.电流表A1,量程0.6 A,内阻约0.6 Ω |
C.电流表A2,量程3 A,内阻约0.12 Ω |
D.电压表V1,量程15 V,内阻约15 kΩ |
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