Calculate the peak value of sinusoidal waveform if the r.m.s value is 21 V.

Calculate the peak value of sinusoidal waveform if the r.m.s value is 21 V. Correct Answer 29.69 V

R.M.S value of the sinusoidal waveform is Vpeak÷2½ and r.m.s value of the trapezoidal waveform is Vm÷3½. The peak value of the sinusoidal waveform is Vr.m.s×2½. Vpeak = Vr.m.s×2½=21×1.414=29.69 V.
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