Time Response of Reactive Circuits

Q1: In an RL differentiator, when the input pulse goes from its low level to its high level,

A the inductor prevents a sudden change in voltage

B the inductor prevents a sudden change in current

C voltage across the inductor instantly reaches 63% of input voltage

D voltage across the inductor is zero

ANS:B - the inductor prevents a sudden change in current

Because Inductor initially behaves as an open circuit.



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