The instantaneous value of current is given by $I = 100 sin (100 t) mA .$

$(i i)$ Find the rms value of current.

$[$ 1 Mark $]$

70.4 A

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100 A

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141.4 mA

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70.7 mA

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Solution

The correct option is D $70.7 mA$
RMS current, $I_{r m s} = \frac{I_{0}}{\sqrt{2}} = \frac{100}{\sqrt{2}}$
$I_{r m s} = 70.7 mA$

Suggest Corrections

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