An electric dipole of moment $\vec{p}$ is placed in a uniform electric field $\vec{E}$. The dipole is rotated by a small angle $heta$ from its equilibrium position. The restoring torque acting on the dipole is proportional to:

A short electric dipole has a dipole moment of $16 imes 10^{-9} \mathrm{C} \mathrm{m}$. The electric potential due to this dipole at a point $0.6 \mathrm{~m}$ from centre of dipole situated on dipole axis may be

Two identical electric point dipoles have dipole moments ${p_1} = p\hat i$ and ${p_2} = - p\hat i$ are held on the X-axis at distance $a$ from each other. When released, they move along the X-axis with the direction of their dipole moments remaining unchanged. If the mass of each dipole is $m,$ their speed when they are infinitely far apart is

If 7 charge $q$ are placed at corners of cube of edge length $\sqrt{3} \mathrm{~m}$ then find potential at centre of cube:

An electric dipole with dipole moment 'p' is placed in a uniform electric field 'E'. The maximum torque experienced by the dipole is:

Assume that an electric field $\overrightarrow E = 30{x^2}\hat i$ exists in space. Then the potential difference ${V_A} - {V_O},$ where ${V_O}$ is the potential at the origin and ${V_A}$ the potential at x = 2m is

Electric potential at the mid point of two identical point charges placed at some distance is ${V}.$ If $25 \%$ of charge of one point charge is transferred to another then new potential at mid point will be:

A spherical equipotential surface is not possible

Which of the following is not true?

If the distance between the charges of a dipole is doubled, while keeping the magnitude of the charges constant, the electric potential at a point on its axial line will:

An electric dipole is placed in a uniform electric field. The net force experienced by the dipole is: