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Kirchhoff's Junction Law

An inductor o...

Question

An inductor of inductance $1.2734 H$ is connected across $200 V 50 H z$ supply. Peak value of current is approximately.

0.5 A

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0.7 A

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1 A

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1.4 A

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Solution

The correct option is A $0.5 A$
$ω = 2 π f$
$X_{L} = ω L = 2 \times 3.141 \times 50 \times 1.2734 = 400$
$i_{o} = \frac{V_{o}}{X_{L}} = \frac{200}{400} = 0.5$

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