A.U1+U2=U | B.U1+U2<U |
C.U1/U2=R1/R2 | D.U1/U2≠R1/R2 |
| ||
|
RVU |
RVR1+RVR2+R1R2 |
RVU |
RVR1+RVR2+R1R2 |
U1 |
U2 |
R1 |
R2 |
A.BIL | B.BIdcosθ | C.
| D.BIdsinθ |
A.φa>φb,20V | B.φa>φb,100V | C.φa<φb,20V | D.φa<φb,100V |
A.A1的示数大于I0 | B.A2的示数大于I0 |
C.A3的示数大于I0 | D.A4的示数大于I0 |
A.小于4V | B.等于4V |
C.大于或等于8V | D.大于4V小于8V |
A.AB段断路 | B.BC段断路 | C.AB段短路 | D.无法判断 |
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