Write the formulas for the electric field due to an electric dipole and the magnetic field due to a current-carrying loop at a point on their respective equatorial (bisector) lines at a distance $x$.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) The electric field $\overrightarrow{E}$ due to an electric dipole with dipole moment $\overrightarrow{p_{e}}$ at a point on its equatorial line at a distance $x$ (where $x >> a$) is given by:
$\overrightarrow{E} = -\frac{\overrightarrow{p_{e}}}{4 \pi \epsilon_{0} x^{3}}$
The magnetic field $\overrightarrow{B}$ due to a current-carrying loop with magnetic moment $\overrightarrow{m}$ at a point on its axis at a distance $x$ (where $x >> R$) is given by:
$\overrightarrow{B} = \frac{\mu_{0}}{4 \pi} \frac{2\overrightarrow{m}}{x^{3}}$
Note: The equatorial field for a dipole is antiparallel to the dipole moment,while the axial field for a magnetic loop is parallel to the magnetic moment.

Explore More

Similar Questions

The figure shows electric field lines in which an electric dipole $p$ is placed as shown. Which of the following statements is correct?

Torque acting on an electric dipole in a uniform electric field is maximum when the angle between $\vec{p}$ and $\vec{E}$ is . . . . . . . (in $^{\circ}$)

$A$ point particle of mass $M$ is attached to one end of a massless non-conducting rod of length $L$. Another point particle of the same mass is attached to the other end of the rod. The two particles carry charges $+q$ and $-q$ respectively. This arrangement is placed in a region of uniform electric field $E$. When the rod makes a small angle $(< 5^o)$ with the direction of the field,what is the minimum time required for the rod to become parallel to the field?

Difficult
View Solution

An electric dipole is placed at the centre of a sphere. Mark the correct answer.

For the shown situation of two dipoles,the nature of forces between them is:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo