The peak value of a sine wave is 200V.Its average value is

The peak value of a sine wave is 200V.Its average value is 

A. 127.4 V
B. 141.4 V
C. 282.8 V
D. 200 V

Ans: A


Explanatory answer :

For sinusoidal waveform,

peak factor= peak value/ rms value =1.414

therefore  rms value = 200/ 1.414 = 141.44

and form factor = rms value/ average value = 1.11

therefore, average value = 141.44/ 1.11 = 127.4 V