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Time Response of Reactive Circuits - Technical MCQs

Q1:

In the given circuit, what must the pulse width and time between pulses be to allow the capacitor to completely charge by the end of each pulse and to completely discharge between each pulse?

A 940 mu.gifs

B 2.82 ms

C 3.76 ms

D 4.7 ms

ANS:D - 4.7 ms

T = R*C.

= 470 kohm* 0.002 microfarad.

Completion of charging and discharging is equal to 5T.

Time to discharge = 5*470 kohm* 0.002 microfarad.

Answer = 4.7 ms.