Write the expression for energy dinsity of electric field 'E' in free space.

Write the expression for energy density of electric field E in free space.

The expression for Ohm's law in terms of electric field E and current density J is:-

Derive an expression for potential energy of an electric dipole in a uniform electric field. In which situation, the potential energy fo dipole is (i) maximum and (ii) minimum.

In a plane e.m. wave, the electric field oscillates withe amplitude 20Vm^-1 . Find (a) energy density of electric field (b) energy density of magnetic field.

Find the expression of torque acting on an electric dipole placed in a uniform electric field . Using the above obtained expression of torque find the expression for potential energy of electric dipole kept in the uniform electric field . Assume potential energy of electric dipole to be zero when its axis is perpendicular to the externally applied electric field .