# Q7.2 (b) The RMS value of current in an ac circuit is $10\: A$ . What is the peak current?

Given,

RMS value of current $I_{rms}=10A$

Since Current is also sinusoidal (because only resistance is present  in the circuit, not the capacitor and inductor)

$I_{rms}=\frac{I_{peak}}{\sqrt{2}}$

$I_{peak}=\sqrt{2}I_{rms}=\sqrt{2}*10=14.1A$

Hence the peak value of current is 14.1A.

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