I | max |
E | ||
|
4.5 |
220 |
A | 1 |
V | 1 |
R | max |
E | ||||
|
4.5 | ||||
|
R | 1 |
| ||
|
3000 |
220 |
220 |
0.1 |
R | x |
U |
I |
R | x |
ρL | ||||
|
π
| ||
4IL |
A | 1 |
V | 1 |
R | 1 |
π
| ||
4IL |
A.待测电流表A(满偏电流Ig=1mA,内阻大约100Ω), | B.电阻箱R1(阻值范围0~999Ω), | C.滑线变阻器R2(最大阻值10kΩ), |
D.滑线变阻器R3(最大阻值20kΩ),E.电源E1(电动势10V,内阻很小),F.电源E2(电动势15V,内阻很小),开关、导线若干。 |
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