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In the following circuit, the switch S is closed at t = 0. The rate of change of current di/dt(0+) is given by

(A) 0

(B) RsIs/L

(C) (R + Rs)Is/L


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1 Answer

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Correct option: (B)


from (1)

As the switch is closed at t = 0+ 

⇒ i(0+) = 0 = i(0-)   .....(2)

Apply KVL in ckt(1) after closing the switch

Hence alternative (b) is the correct option.

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