Question

The magnetic field due to bar magnet a point along its axis and at a same

point along its equator is related as..

A)Bax = 2Beq B) Bax =





Beq C) Bax = 3Beq D) Bax = (Beq)

2​

Answer 1

Explanation:

B (axial ) = 2 x B (equi)

B(axial) = 10^-7 x 2M/r³

B(equ) = 10^-7 x M/r³

Answer 2

Answer:

The field on the axial line is twice as large as the field on the equatorial line $B{ax} = 2B_{eq}$  thus option A is correct.

Explanation:

A magnetic field is an invisible region that surrounds a magnet. A magnetic field is a term that describes how magnetic force is distributed around a magnetic object.

The field due to a bar magnet at a distance on its axis of about $=2 \mathrm{M} / \mathrm{d}^{3}$ and the field due to a bar magnet at the same distance on the equatorial line of about $= \mathrm{M} / \mathrm{d}^{3}$

$q_{m} \cdot 2 l=m$ is the magnetic dipole moment.

$B_{\text {axial }}=\frac{\mu_{0}}{4 \pi} \cdot \frac{2 m r}{\left(r^{2}-l^{2}\right)^{2}}$

The magnetic field at every axial point of a magnetic dipole is clearly in the same direction as its magnetic dipole moment, that is, from S-pole to N-pole, so we may write

As a result, the field on the axial line is twice as large as the field on the equatorial line.$\vec{B}_{\text {axial }}=\frac{\mu_{0}}{4 \pi} \cdot \frac{2 \vec{m}}{r^{3}}$

so option A is correct $B{ax} = 2B_{eq}$