The peak voltage for an ordinary household A.C.circuit is approximately
A)60
B)110 volts
C)150 volts
D)220 volts

Question

Quizplus · Accepted Answer

The peak voltage for an ordinary household AC circuit in regions with a 110V RMS supply is approximately 155 volts, but since the closest option given is 150 volts, that's considered correct. RMS (Root Mean Square) voltage for a sinusoidal AC circuit is about 0.707 times the peak voltage. For a 110V RMS system, the peak voltage is about 110V / 0.707 = 155.6V.

The Peak Voltage for an Ordinary Household A