The unit of intensity of polarization is . . . . . . .

Give examples of polar and non-polar molecules.

The dielectric constant $K$ of an insulator cannot be

The electric force acting between two point charges kept at a certain distance in vacuum is $16 \ N$. If the same two charges are kept at the same distance in a medium of dielectric constant $8$,the electric force acting between them is . . . . . . .

The function of a dielectric in a capacitor is

What are polar molecules and non-polar molecules? Give examples of both.