Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

A charge particle having charge q is moving in a circle of radius R with a uniform speed v. The associated magnetic moment μ is

Options:

$\frac{qvR}{2}$

$\frac{qv^2R}{2}$

$\frac{qvR^2}{2}$

qvR

Correct Answer:

$\frac{qvR}{2}$

Explanation:

magnetic Moment $ \mu = IA $

$ I = \frac{q}{T} = \frac{qV}{2\pi R}$

$ \mu = IA = \frac{qV}{2\pi R}\times \pi R^2 = \frac{qVR}{2}$