Measurements and Instrumentation

Q1: An average responding rectifier type electronic voltmeter has its scale calibrated in terms of rms value of sine wave. If 100 V peak value square wave is fed to this voltmeter, the reading will be

A 111 V

B 100 V

C 90.9 V

D 70.7 V

ANS:A - 111 V

Please explain it with the formula.



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