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  4. Figure shows a circuit that contains three identical resistors with resistance R = 9.0 Ω each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf e = 18 V. The current i through the battery just after the switch closed is

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Q. Figure shows a circuit that contains three identical resistors with resistance $R = 9.0$ $\Omega$ each, two identical inductors with inductance $L = 2.0 \,mH$ each, and an ideal battery with emf $e = 18 \,V$. The current $i$ through the battery just after the switch closed isPhysics Question Image

NEETNEET 2017Alternating Current

Solution:

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At $t=0$, no current flows through $R_{1}$ and $R_{3}$
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$i=\frac{\varepsilon}{R_{2}}$
$=\frac{18}{9}$
$=2\, A$