Question

An $AC$ source is rated $222V$, $60Hz$. the average voltage is calculated in a time interval of $16.66ms$ is?

• A. Must be zero
• B. May be zero
• C. Is never zero
• D. Is $\left(111\sqrt{2}\right)V$

Answer 1

The correct option is A Must be zero

Given,

$V_{rms}=220V$, frequency=$60Hz$

Calculating time period=$\frac{1}{f}=\frac{1}{60}=16.67ms$

In $1$ time period, Average voltage of an AC is ZERO.

Hence $\text{A}$ is corrrect answer