Electric Dipole

The S.I unit of electric dipole moment is

Which orientation of an electric dipole(p) in a uniform electric field(E) would correspond to stable equilibrium?

Two point charges 4Q,Q are separated by 1 m in air at what point on the line joining the charges is the electric field intensity zero?

Also calculate the electrostatic potential energy of the system of charges, taking the value of charge,  $Q=2\times {10}^{-7}$ C.

Find the potential due the dipole when the angle subtended by the two charges at the point $\mathrm{P}$ is ${90}^{\mathrm{o}}$.

Calculate the dipole moment of the two equal charges $2\mathrm{C}$ and $-2\mathrm{C}$ separated by a distance of $4\mathrm{cm}$.

An electric dipole is placed inside a cube. What will be the nature of electric flux from the cube surface?

If electric field intensity at a certain distance from a dipole on its axis is ${\mathrm{E}}_1$ and at the same distance but on the ${\perp }^{\mathrm{r}}$ (perpendicular) bisector of the dipole is ${\mathrm{E}}_2$, then

A charge of magnitude $\mathrm{q}$ is divided into two parts such that force between resulting two charges is maximum when separated through some distance $\mathrm{r}$. The division of charges would be-

The S.I. unit of electric dipole moment is-

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

An electric dipole of dipole moment $\mathrm{P}$ is placed in an electric field $\mathrm{E}$. The torque exerted by the field on the dipole is-

If the force acting on a point charge kept on the axis of an electric dipole is $\mathrm{F}$. What will be the amount of the force if the distance of the point charge is doubled from the dipole?

What is the dimension of the dipole moment?

The electric potential at the equatorial position due to the dipole is zero.

Calculate the electric field due to a dipole at a point on the equatorial plane.

An electric dipole of length $1 \mathrm{cm}$ is placed with the axis making an angle of $30°$ to an electric field of strength ${10}^4 \mathrm{N} {\mathrm{C}}^{-1}$. If it experiences a torque of $10\sqrt{3} \mathrm{N} \mathrm{m}$, the potential energy (in joule) of the dipole is $-x \mathrm{J}$. Find the value of $x$.

A molecule of a substance has a permanent electric dipole moment equal to ${10}^{-29} \mathrm{C} \mathrm{m}$. A mole of this substance is polarised (at low temperature) by applying a strong electrostatic field of magnitude $\left({10}^6 \mathrm{V} {\mathrm{m}}^{-1}\right)$. The direction of the field is suddenly changed by an angle of $60°$. Estimate the heat released by the substance in aligning its dipoles along the new direction of the field. For simplicity, assume $100\%$ polarisation to the sample.

If an electric dipole is placed in a uniform electric field, it experiences:

What is the unit of electric dipole moment?

Electric field due to the electric dipole at the equatorial plane is given as: