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In the case of PMMC rectifier type instruments, the deflecting torque is proportional to

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In the case of PMMC rectifier type instruments, the deflecting torque is proportional to
1). Average value of AC current
2). RMS of AC
3). Instantaneous value
4). Peak value


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Answered by on | Votes 1 |
PMMC instruments measures average values. In PMMC rectifier type instruments, the deflecting torque is proportional to the average value of AC current, but the scale is calibrated for rms value of AC current.

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