Question

Dipoles are created when dielectric is placed in __________

(a) Magnetic Field

(b) Electric field

(c) Vacuum

(d) Inert Environment

This question was posed to me in an international level competition.

This key question is from Dielectric Polarisation topic in section Dielectrics of Engineering Physics II

Answer 1

The correct answer is (b) Electric field

For explanation I would say: When the dielectric is placed in an electric field, like between the parallel plates of a capacitor, the dipoles are created and they tend to align themselves parallel to the direction of the field.