Average Value
The arithmetic average of all the values of an alternating quantity over one cycle is called its average value.
For Symmetrical waveforms, the average value calculated over one cycle becomes equal to zero because the positive area cancels the negative area. Hence for symmetrical waveforms, the average value is calculated for half cycle.
Average value of a sinusoidal current:
Average value of a full wave rectifier output
Average value of a half wave rectifier output
