Question

Capacitance is directly proportional to__________

(a) Area of cross section between the plates

(b) Distance of separation between the plates

(c) Both area and distance

(d) Neither area nor distance

I have been asked this question at a job interview.

Question is taken from Capacitance in section Capacitance and Capacitors of Basic Electrical Engineering

Answer 1

The correct option is (a) Area of cross section between the plates

The explanation: The relation between capacitance, area and distance between the plates is: C=epsilon*A/D. According to this relation, the capacitance is directly proportional to the area.