Question

While charging, what happens to the voltage in the capacitive circuit?

(a) Decreases linearly

(b) Increases linearly

(c) Decreases exponentially

(d) Increases exponentially

I have been asked this question in final exam.

I need to ask this question from Growth and Decay topic in chapter Capacitance and Capacitors of Basic Electrical Engineering

Answer 1

Correct option is (d) Increases exponentially

For explanation: The equation for the value of voltage in a charging capacitive circuit is:

V=V0(1-e^-t/RC). From this equation, we can see that the voltage is exponentially increasing.