In an AC circuit, if the peak voltage is 20 V, then root mean square (rms) voltage will be
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 14.14 V
For a sinusoidal AC voltage, the relationship between peak voltage $V_0$ and RMS voltage $V_{\text{rms}}$ is:
$V_{\text{rms}} = \frac{V_0}{\sqrt{2}}$
Given $V_0 = 20 \, \text{V}$,
$V_{\text{rms}} = \frac{20}{\sqrt{2}} \approx 14.14 \, \text{V}$
${V_{\text{rms}} \approx 14.1 \, \text{V}}$