Question

Which among the following expressions relate charge, voltage and capacitance of a capacitor?

(a) Q=C/V

(b) Q=V/C

(c) Q=CV

(d) C=Q^2V

I got this question at a job interview.

I want to ask this question from Charge and Voltage topic in portion Capacitance and Capacitors of Basic Electrical Engineering

Answer 1

Right option is (c) Q=CV

To explain: Q is directly proportional to V. The constant of proportionality in this case is C, that is, the capacitance. Hence Q=CV.