Target Exam

CUET

Subject

Physics

Chapter

Magnetism and Matter

Question:

If M is magnetic moment and B is magnetic field, then the torque is given by

Options:

$\vec M.\vec B$

$\vec M×\vec B$

$\vec B×\vec M$

$\frac{|\vec M|}{|\vec B|}$

Correct Answer:

$\vec M×\vec B$

Explanation:

The correct answer is Option (2) → $\vec M×\vec B$

The torque on a magnetic dipole in a uniform magnetic field is given by:

$\tau = \vec{M} \times \vec{B}$

Magnitude:

$|\tau| = MB \sin\theta$