Correct Answer - Option 1 : 111 V
Concept:
When an average responding rectifier type electronic ac voltmeter has its scale calibrated in terms of the rms value of a sine wave, then reading indicated by the meter is given by
Vrms = 1.11 Vavg
Where, Vavg = Average value of given voltage
Calculation:
Given that,
Peak value of square wave voltage, Vm = 100 volt
We know that for square waveform
Vm = Vrms = Vavg
∴ Average value of square wave voltage, Vavg = 100 volts
∴ Reading indicated by the meter can be calculated as
Vrms = 1.11 × 100 = 111 Volts