When an electric dipole $\vec{p}$ is placed in a uniform electric field $\vec{E}$,for what angle (in degrees) between $\vec{p}$ and $\vec{E}$ will the torque be maximum?

An electric dipole consists of two opposite charges each of magnitude $1 \,\mu C$ separated by a distance of $2 \,cm$. The dipole is placed in an external field of $10^5 \,N/C$. The maximum torque on the dipole is ......... $Nm$.

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

The dipole moment of a system of charge $+q$ distributed uniformly on an arc of radius $R$ subtending an angle $\pi /2$ at its centre, where another charge $-q$ is placed at the centre, is:

Two point charges of same magnitude and opposite sign are fixed at points $A$ and $B$. $A$ third small point charge is to be balanced at point $P$ by the electrostatic force due to these two charges. The point $P$

Write the expression for the torque experienced by an electric dipole placed in a uniform electric field.