A charged paticle (charge q ) is moving in a circle of radius R with uniform speed V . The associated magentic moment is given by

Options

A. `q V R^(2)`
B. `(q V R^(2))/(2)`
C. qVR
D. `(qVR)/(2)`

Answer

B

Explanation

Magnetic moment, M = IA = `(q)/(T) (pi R^(2))`
M = `(qv)/(2 pi R ) (pi R^(2)) = (qv R)/(2)`