Question

Mica has a dielectric strength of _____________

(a) 50 X 10^6 V/m

(b) 100 X 10^6 V/m

(c) 150 X 10^6 V/m

(d) 200 X 10^6 V/m

The question was asked in my homework.

This intriguing question originated from Dielectric Breakdown topic in chapter Dielectrics of Engineering Physics II

Answer 1

Correct option is (b) 100 X 10^6 V/m

To explain I would say: Mica has one of the highest dielectric strengths of 100 X 10^6 V/m. It is widely used for insulation purposes.