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Q.
The peak value of $AC$ voltage on a $220\, V$ mains is:
Rajasthan PMTRajasthan PMT 2005Alternating Current
Solution:
Here $: rms$ voltage $V_{ rms}=220\, V$
Using the relation,
$V_{ rms }=\frac{\text { peak voltage }}{\sqrt{2}}$
Hence, peak value of A.C. voltage
$V_{P}=220 \sqrt{2} V$