Question

If the Voltage increases, what happens to dielectric strength?

(a) Increases

(b) Decreases

(c) Remains the same

(d) Becomes zero

I had been asked this question by my college director while I was bunking the class.

This intriguing question originated from Dielectric Strength in chapter Capacitance and Capacitors of Basic Electrical Engineering

Answer 1

Correct option is (a) Increases

Best explanation: Dielectric strength is the potential gradient required to cause a breakdown in the material. Potential gradient is the ratio of voltage and length. Hence as potential increases, dielectric strength also increases.