Question

In which category of polarization Electric field is used to develop a net dipole moment in dipolar substances?

(a) Ionic Polarization

(b) Space-charge polarization

(c) Orientational Polarization

(d) Electronic Polarization

The question was posed to me by my college professor while I was bunking the class.

My doubt stems from Types of Polarisation in chapter Dielectrics of Engineering Physics II

Answer 1

Right option is (c) Orientational Polarization

The best explanation: Dipolar substance possess a permanent dipole moment. However, in the absence of an electric field, they are aligned in a way that they cancel out the net dipole moment. Thus, the orientational polarization is due to the fact that it is because of the orientation of pre-existing dipoles.