Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

The magnitude of the magnetic field due to a short bar magnet having a magnetic moment of $0.2 Am^2$, at a distance of 50 cm from the centre of the magnet on its axial line will be

Options:

$1.2 × 10^{-7} T$

$6.4 × 10^{-7} T$

$3.2 × 10^{-7} T$

$5 × 10^{-7} T$

Correct Answer:

$3.2 × 10^{-7} T$

Explanation:

The correct answer is Option (3) → $3.2 × 10^{-7} T$