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The instantaneous current from an a.c. source is $\mathrm{I}=6 \sin 314 \mathrm{t}$. What is the rms value of the current?
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$3 \sqrt{2} \mathrm{amp}$
$\mathrm{I}_{\mathrm{rms}}=\frac{\mathrm{I}_{0}}{\sqrt{2}}=\frac{6}{\sqrt{2}}=3 \sqrt{2} \mathrm{amp} .$
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