The figure shows three circuits with identical batteries, inductors and resistances. Rank the circuits according to the currents through the battery just after the switch is closed, greatest first
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a
I2>I3>I1
b
I2>I1>I3
c
I1>I2>I3
d
I1>I3>I2
answer is A.
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Detailed Solution
I1=0, I2=εR, I3=ε2R⇒I2>I3>I1 Just after the switch is closed , current through inductor is zero .