Alternating Current vs Direct Current - Technical MCQs

Q1:

What is the peak-to peak voltage of a 56 Vrms ac voltage?

A 158 V

B 164 V

C 82 V

D 79 V

ANS:A - 158 V

Peak value = rms*2/0.707,

So peak value = 56*2/0.707 = 158v.