Derive the expression for the couple acting on the electric dipole in uniform electric field

Derive an expression for couple acting on an electric dipole kept in a uniform electric field.

Derive an expression for torque acting on an electric dipole in uniform electric field.

Define electric dipole.

Derive an expression for a torque acting on a bar magnet placed in uniform magnetic field B.

Derive an expression for force acting on current carrying conductor in uniform magnetic field

Which of the following produces uniform electric field?

Derive an expression for the electric intensity due to an electric dipole at a point on the axis of dipole. When a point charge of 5 xx 10^-9 C is taken from point A to point B, the work done is 10^-6 J. Find the potential difference between points A and points B.

Derive an expression for potential energy of a dipole in an external electric field.

The moment of couple acting on an electric field is maximum when

Define electric dipole and electric dipole moment.