Electric Dipole

Figure shows electric field lines in which an electric dipole $p$ is placed as shown. Which of the following statements is correct?

Assertion: No work is done in moving an electric dipole transnationally in uniform electric field.

Reason: Net force on electric dipole in uniform electric field is zero.

Electric field at a far away distance $r$ on the axis of a dipole is $E_0.$ What is the electric field at a distance $2r$ on perpendicular bisector?

An electric dipole when placed in a uniform electric field $E$ will have minimum potential energy if the dipole moment makes the following angle with $E$

The electric field due to an electric dipole at a distance $r$ from its centre in axial position is $E.$ If the dipole is rotated through an angle of $90°$ about its perpendicular axis, the magnitude of electric field at the same point will be

A molecule with a dipole moment $p$ is placed in an electric field of strength $E.$ Initially, the dipole is aligned parallel to the field. If the dipole is to be rotated anti-parallel to the field, the work required to be done by an external agency is

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

If $E_a$ be the magnitude of electric field strength of a short dipole at a point on its axial line and $E_e$ that on the equatorial line at the same distance, then

Two opposite and equal charges $4\times {10}^{-8} \mathrm{C}$ when placed $2\times {10}^{-2} \mathrm{cm}$ away form a dipole. If this dipole is placed in an external electric field $4\times {10}^8 \mathrm{N} {\mathrm{C}}^{-1},$ then value of maximum torque and the work done in rotating it through $180°$ will be

The torque acting on a dipole of moment $\overrightarrow{p}$ in an electric field $\overrightarrow{E}$ is:

Electric charges $q, q,-2q$ are placed at the corners of an equilateral triangle $ABC$ of side $l$. The magnitude of electric dipole moment of the system is

An electric dipole of moment $p$ is placed normal to the lines of force of electric intensity $E,$ then the work done in deflecting it through an angle of $180°$ is

An electric dipole is kept in non-uniform electric field. It experiences