Question

For the circuit shown below, find the voltage across the capacitor C1 at the time the switch is closed.

(a) 0

(b) V/4

(c) V/2

(d) V

This question was posed to me in my homework.

I'd like to ask this question from The Impulse Function in Circuit Analysis in section Application of the Laplace Transform in Circuit Analysis of Network Theory

Answer 1

The correct answer is (d) V

For explanation I would say: We use two different cicuits to illustrate how an impulse function can be created with a switching operation. The capacitor is charged to an initial voltage of V at the time the switch is closed.