Question

1. which formula is used to calculate the rms voltage of a sine wave? a 0.707 × peak value b 0.637 × peak value c 0.707 × peak - to - peak value d 1.414 × peak voltage

Explanation:

The RMS (Root - Mean - Square) voltage of a sine wave is calculated by multiplying the peak value of the sine - wave voltage by 0.707 (which is $\frac{1}{\sqrt{2}}$). Peak - to - peak value is different from peak value, and the other multiplier values given are incorrect for this calculation.

Answer:

A. 0.707 × peak value