U |
R并+R-RX |
U | ||
|
R0 |
R0+RX |
R0 |
R0+RX |
U | ||
|
UR0 | ||
RR0+RRX-
|
UR0 | ||||
RR0+(
|
R |
2 |
4UR0 |
4RR0+R2 |
U |
R |
4UR0 |
4RR0+R2 |
U |
R |
4UR0 |
4RR0+R2 |
U |
R |
A.电阻的真实值更接近460Ω,且大于460Ω |
B.电阻的真实值更接近460Ω,且小于460Ω |
C.电阻的真实值更接近543Ω,且大于543Ω |
D.电阻的真实值更接近543Ω,且小于543Ω |
A.大于9V | B.等于9V | C.小于9V | D.无法确定 |
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