Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 5M

Year: May 2015

In the case of orientation polarization we have a material with built-in dipoles that are independent of each other, i.e. they can rotate freely - in sharp contrast to ionic polarization.

• The total dipole moment is the vector sum of the individual dipole moments.

  $p_{av} = α_eE_{loc} + α_iE_{loc} + α_dE_{loc}$

• If we now introduce a field E, the dipoles would have a tendency to turn into the field because that would lower their energy.