The square waveform of current has following relation between r.m.s value and average value

A

r.m.s. value of current is greater than the average value

B

r.m.s. value of current is less than the average value

C

r.m.s. value of current is equal to the average value

D

There is no definite relation between the r.m.s. value and average value for a square wave