What is the root mean square (r.m.s.) value of a sine wave if its peak amplitude is Imax?

Explanation

The r.m.s. value of a sinusoidal waveform is obtained by dividing its peak value by the square root of 2, which is approximately 0.707. Therefore, for a sine wave with peak Imax, the r.m.s. value equals 0.707 × Imax.