Electric Dipole

What is a dipole in physics?

What is electric dipole formula?

Where do dipoles point?

What is point dipole give example?

What is point dipole Class 12?

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 $x$.

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

Reason: Value of electric field at axis due to electric dipole is double of equatorial axis of it.

Identify the physical quantity, which has as its unit coulomb-metre.
(Choose from: magnetic moment/dipole moment)

Calculate the electric field due to a dipole on its axial line.

Define ‘Electric dipole’

In a system two charges $q_A=2.5\times {10}^{-7} \mathrm{C}$ and $q_B=-2.5 \times {10}^{-7} \mathrm{C}$ are situated at point $A(0, 0, -15 \mathrm{cm})$ and $B(0, 0, + 15 \mathrm{cm})$. Find the electric dipole moment of the system.

What is the net force (in SI units) on an electric dipole in a uniform electric field?
(Give only the magnitude of the solution).

For the same distance from centre of the dipole the ratio of electric fields at longitudinal and transverse position is 

An electron and a proton are $1 \mathrm{m}$ apart. The dipole moment of the system is (Take, $e=1.6\times {10}^{-19} \mathrm{C}$)

The dipole moment of $\mathrm{HCl}$ molecule is  $3.4\times {10}^{-30}$ $\mathrm{C}-\mathrm{m}$. The separation between its ions is ($e=1.6\times {10}^{-19} \mathrm{C}$)

An electric dipole of length $20 \mathrm{c}\mathrm{m}$ having $\pm 3\times {10}^{-3} \mathrm{C}$ charge placed at ${60}^{\mathrm{o}}$ with respect to a uniform electric field experiences a torque of magnitude $6 \mathrm{N}\mathrm{ }\mathrm{m}$ . The potential energy of the dipole is

Which of the following is not true?

An electric dipole consists of charges $\pm 2.0\times {10}^{-8}\mathrm{C}$ separated by a distance of $2.0\times {10}^{-3} \mathrm{m}$. It is placed near a long line charge of linear charge density $4.0\times {10}^{-4} \mathrm{C}\mathrm{ }{\mathrm{m}}^{-1}$ as shown in the figure, such that the negative charge is at a distance of $20 \mathrm{cm}$ line charge. The force acting on the dipole will be

Two charges $+20\mathrm{ }\mathrm{\mu }\mathrm{C}$ and $-20 \mathrm{\mu }\mathrm{C}$ are placed $10 \mathrm{mm}$ apart. The electric field at point $\mathrm{P}$, on the axis of the dipole $10 \mathrm{cm}$ away from its centre $\mathrm{O}$ on the side of the positive charge is