A bar magnet of the moment M → = i ^ + j ^ is placed in a magnetic field induction B → = 3 i ^ + 4 j ^ + 4 k ^ . The torque acting on the magnet is

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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismProperties of magnetEasy2 minPYQ_2020

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A bar magnet of the moment $\vec{M} = \hat{i} + \hat{j}$ is placed in a magnetic field induction $\vec{B} = 3 \hat{i} + 4 \hat{j} + 4 \hat{k}$ . The torque acting on the magnet is

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Solution:

When bar magnet is palced in external magnetic field it experiences torque.

$\vec{τ} = \vec{M} \times \vec{B}$

$\vec{τ} =$ $4 \hat{i} - 4 \hat{j} + \hat{k}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Properties of magnet

⏱ 2mℹ️ Source: PYQ_2020

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