Question

RMS value of in our domestic AC supply is 230V, 50 Hz. Hence its peak value will be
a) 163 V b) 325 V c) 525 V d) 0 V

Answer 1

Answer:

(b)

Explanation:

$rms = v \div \sqrt{2} \\ so \: \: \: \: \: \: \: \: \: \: 230 = \frac{v}{ \sqrt{2} } \\ \\ hence \: \: v = 230 \times \sqrt{2 } \\ \\ = 325 \: approximation$