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Q.

Three identical resistors with resistance R =12Ω and two identical inductors with self inductance L =5 mH are connected to an ideal battery with emf of 12 V as shown in figure . The current through the battery long after the switch has been closed will be _______A.

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answer is 3.

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Detailed Solution

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After a long time when steady state is attained, the inductors will not have any resistance.

So the combination will act like three resistors connected in parallel combination

Reff=123=4Ω
i=VReff=124=3A

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