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NEET 1999 (AIPMT) · Field of a Magnet & Magnet in a Uniform Field

Field of a Magnet & Magnet in a Uniform Field question from NEET 1999 (AIPMT)

Q32NEET 1999 · AIPMTEasy

Field of a Magnet & Magnet in a Uniform Field

A bar magnet of magnetic moment $\vec{M}$ is placed in a magnetic field of induction $\vec{B}$ . The torque exerted on it is

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Answer: (c)

Torque on a dipole in a field: $\vec\tau = \vec M \times \vec B$ , magnitude $MB\sin\theta$ .
So the answer is (c) $\vec M \times \vec B$ .

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