In which direction would the magnetic field o | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The correct answer is $A$.For a bar magnet,the magnetic field $\overrightarrow{B}$ at a point on its axial line at a distance $Z$ from the center

Vedclass · Accepted Answer

In the direction of the magnetic dipole moment ( $\overrightarrow{M}$ ) of the magnet.

Vedclass · Answer

(A) The correct answer is $A$.For a bar magnet,the magnetic field $\overrightarrow{B}$ at a point on its axial line at a distance $Z$ from the center is given by the formula:$\overrightarrow{B} = \frac{\mu_0}{4\pi} \frac{2\overrightarrow{M}}{Z^3}$where $\overrightarrow{M}$ is the magnetic dipole moment of the magnet.Since the expression for the magnetic field is directly proportional to the magnetic dipole moment vector $\overrightarrow{M}$,the direction of the magnetic field $\overrightarrow{B}$ is the same as the direction of the magnetic dipole moment $\overrightarrow{M}$.

In which direction would the magnetic field on the axis at a distance $Z$ from the centre of the bar magnet be?

Similar Questions

The magnitude of the axial field due to a short bar magnet at a distance of $50 \,cm$ from its mid-point is (The magnetic moment of the bar magnet is $0.4 \,Am^2$)

$A$ bar magnet has a magnetic moment of $200 \text{ A m}^2$. The magnet is suspended in a magnetic field of $0.30 \text{ N A}^{-1} \text{ m}^{-1}$. The torque required to rotate the magnet from its equilibrium position through an angle of $30^{\circ}$ will be:

The magnetic field due to a bar magnet at a distance $R$ from the center of the magnet (where $R$ is much larger than the length of the magnet) is proportional to:

$A$ magnetic needle suspended parallel to a magnetic field requires $\sqrt{3} \text{ J}$ of work to turn it through $60^{\circ}$. The torque needed to maintain the needle in this position will be

Two equal bar magnets are kept as shown in the figure. The direction of the resultant magnetic field,indicated by the arrowhead at point $P$,is (approximately):

Vedclass Test Series

Exam Paper Generator

Online Exam Module