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Time Response of Reactive Circuits

Q1:
It takes ______ for the output voltage in the given circuit to reach its maximum value.

A 0 s

B 243.9 mu.gifs

C 1 ms

D 1.22 ms

ANS:D - 1.22 ms

Time constant for RL circuit = T.

T = L/R,
T = (200 * 10^-3)/(820),
T = 0.2439 ms.

For the output voltage in the given circuit to reach its maximum value requires = 5 * T. ie.,(5 * Time constant).

5 * T = 5 * 0.2439 * 10^-3 = 1.2195 ms.



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