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if m is the magnetic moment and b is the magnetic
Question:
If M is the magnetic moment and B is the magnetic field, the torque acting on the magnetic dipole is given by:
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Torque is maximum when magnetic moment is perpendicular to the magnetic field.
BITSAT - 2011
BITSAT
Updated On:
Mar 18, 2026
M · B
|M||B|
M × B
|M||B|
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Verified By Collegedunia
The Correct Option is
C
Solution and Explanation
Step 1: Definition of torque on magnetic dipole.
Torque tends to align the dipole with the magnetic field.
Step 2: Vector form.
The torque is given by the cross product of magnetic moment and magnetic field: τ = M × B
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