Question

An AC source is rated 220V, 50 Hz. The average voltge is calculated in a time interval of 0.01s,
It- (1) must be zero
(2) may be zero
(3) is never zero
(4) is 20/?2volt
Also please explain the answer

Answer 1

$Assalamualaikum$

Here is your answer....,

Frequency - 50Hz.

Which means that the time period of the wave if 1/50 = 0.02 sec.

Here we are going to check the average voltage for the time interval of 0.01sec.

If the interval lies between π/2 to 3π/2. the average voltage will be zero. In all the other cases it will not be zero

So, the answer will be may be zero.

I hope it will help you and mark me as a brain list answer plz.