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Time Response of Reactive Circuits

Q1:

The voltage across the capacitor in the given circuit is _______ at the beginning of the second pulse. Assume the capacitor is initially uncharged.

A 0 V

B 427.74 mV

C 2.8 V

D 7.56 V

ANS:B - 427.74 mV

First we have to get the voltage of the capacitor at the first pulse:

Vin(1-e^(-ton/RC)) equals to 3.16V.

Then, to get the voltage of the capacitor before the beginning of the second pulse, meaning during the Toff.

And that is 3.16(e^(-toff/RC)) which is equal to 427.74 mV.



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