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Time Response of Reactive Circuits

Q1:

In an RC differentiator, the capacitor

A charges exponentially at a rate depending on the RC time constant

B charges exponentially at a rate depending on the input voltage

C charges when the input voltage is decreasing

D charges to approximately one time constant

ANS:A - charges exponentially at a rate depending on the RC time constant

As capacitor are placed in filter the are charged depending upon the frequency which is time constant.



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