→ RMS value is called as the heat producing component of ac current.

The effective of RMS value of an AC current is equal to the steady state or DC current that is required to produce same amount of heat as produced by the AC current provided that the resistance and time for which these current flow the identical.

RMS value of a sinusoidal waveform is equal to 0.707 times in peak value

Irms= 0.707Im