Embibe Experts Solutions for Chapter: Electrostatics, Exercise 11: Exercise (Previous Year Questions)

The electric potential at a point due to an electric dipole will be -

The force on a charge situated on the axis of a dipole is $F.$ If the charge is shifted to double the distance, the acting force will be -

For a uniformly charged sphere, the electric field from its centre:-

A charge $Q$ is enclosed by a Gaussian spherical surface of radius $R$. If the radius is doubled, then the outward electric flux will 

An electric dipole of moment $\text{'}p\text{'}$ is placed in an electric field of intensity $\text{'}E\text{'}$. The dipole acquires a position such that the axis of the dipole makes an angle $\theta$ with the direction of the field. Assuming that the potential energy of the dipole to be zero when $\theta =90°$, the torque and the potential energy of the dipole will respectively be

A spherical conducting shell of radius $r_0$ carry a charge $q_0$. The value of electric field inside it is:

Charges of $5\mu C$ each are placed at the corners of an equilateral triangle of side 10 cm. Then the force on each charge is

An electric dipole is placed at an angle of $30°$ with an electric field intensity, $2\times {10}^{5 }\mathrm{N} {\mathrm{C}}^{-1}$. It experiences a torque equal to $4 \mathrm{N} \mathrm{m}$. The charge on the dipole, if the dipole length is $2 \mathrm{cm}$, is