Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Magnetism and Matter

Question:

A bar magnet when suspended horizontally and perpendicular to earth's field experiences a torque of $3× 10^{-4} Nm$. The Magnetic moment of the magnet would be: (take horizontal component of Earth's magnetic field at the place $0.4 × 10^{-4}T$)

Options:

$7.5 JT^{-1}$

$5.7 JT^{-1}$

$0.75 JT^{-1}$

$0.57 JT^{-1}$

Correct Answer:

$7.5 JT^{-1}$

Explanation:

The correct answer is Option (1) → $7.5 JT^{-1}$