Question

The peak voltage in a $220V$ AC source is

• A. $220V$
• B. about $160V$
• C. about $310V$
• D. $440V$

Answer 1

Answer: (C)

Given root mean square voltage,
$V_{rms}=220V$
Peak voltage will be given by,
$V_{peak}=\sqrt{2}{V}_{rms}$
$V_{peak}=\sqrt{2}\left(220\right)$
$V_{peak}\approx 310V$