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Q.

In the given L−R circuit, as shown in figure.

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a

Magnitude of rate of change of current is ε2L when energy stored in inductor is Lε28R2

b

Magnitude of rate of change of current is εL when energy stored in inductor is Lε24R2

c

Magnitude of rate of change of current is ε2L when energy stored in inductor is Lε24R2

d

All the options may be correct.

answer is A.

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Detailed Solution

12LI2=Lϵ28R2I=ε2RIR=ε2So LdIdt=ε2dIdt=E2L
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