A.电源E:电动势约为9V; |
B.电流表A:量程为0.6A,内阻约0.6Ω; |
C.电压表V2:量程为6V,内阻R2=6kΩ; |
D.滑动变阻器R,最大阻值为100Ω; |
U/V | 0.40 | 0.80 | 1.20 | 1.40 | 1.80 | 2.40 | 2.80 | 3.20 | 3.60 | 4.00 |
I/A | 0.092 | 0.150 | 0.235 | 0.270 | 0.340 | 0.390 | 0.422 | 0.441 | 0.475 | 0.496 |
A.待测电源(电动势约4.5V,内阻约2Ω) |
B.电流表A1(量程0.6A,内阻为1Ω) |
C.电压表V1(量程15V,内阻为3kΩ) |
D.电压表V2(量程3V,内阻为2kΩ) |
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