What does an electric dipole experience when placed in a non-uniform electric field?

In the case of the dimensions of electric field and electric dipole moment,the power of mass is respectively:

An electric dipole is situated in an electric field of uniform intensity $E$ whose dipole moment is $p$ and moment of inertia is $I$. If the dipole is displaced slightly from the equilibrium position,then the angular frequency of its oscillations is

An electric dipole placed in a uniform electric field experiences maximum torque when the dipole is placed:

The potential at a point due to an electric dipole will be maximum and minimum when the angles between the axis of the dipole and the line joining the point to the dipole are respectively:

The relation between the intensity of the electric field of an electric dipole at a distance $r$ from its centre on its axis and the distance $r$ is . . . . . . . (where $r \gg 2a$)