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Time Response of Reactive Circuits - Engineering

Q1:

In an RC differentiator, the sum of the capacitor voltage and the resistor voltage at any instant

A must be zero

B must be equal to the applied voltage

C is less than the applied voltage but greater than zero

D cannot be determined

ANS:B - must be equal to the applied voltage

Here, we can use the formula;

Vs^2 = (Vr)^2 + (Vc)^2.