

In the AC circuit current is I =100 sin200Ï€t in this circuit current raises from 0 to peak value in time
The current takes T/4 seconds to reach the peak value.
The equation given is I = 100 sin 200 ∏ t
Hence, 2∏ / T = 200 ∏ which gives T = 1/100 sec
Hence, T/4 = 1/400 sec which is the time taken for peak period.
