Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Magnetism and Matter

Question:

The ratio of intensities of magnetic field in the axial and equatorial positions of a magnet will be-

Options:

1:4 

4:1

1:2

2:1 

Correct Answer:

2:1 

Explanation:

$ B_{Axial} = \frac{\mu_0}{4\pi} \frac{2M}{r^3}$

$ B_{Equatorial} = \frac{\mu_0}{4\pi} \frac{M}{r^3}$

$ \frac{B_{Axial}}{B_{Equatorial}} = 2:1$