Question

How is the dielectric strength denoted as?

(a) s^-1

(b) Vm^-1

(c) Fm^2

(d) CV^-1

The question was asked in an online quiz.

Question is taken from Polarisation and Dielectrics in division Refractories & Dielectric Materials of Engineering Material & Metallurgy

Answer 1

The correct option is (b) Vm^-1

To elaborate: The dielectric strength of a material is defined as the maximum amount of electric field that it can withstand without a fracture. It is denoted as volt per meter (Vm^-1) or newton per coulomb (NC^-1). Dielectric strength can alternatively be referred to as electric field strength (E).