# A charged particle (charge q) is moving in a circle of radius R with an uniform speed v. The associated magnetic moment m is given by

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A charged particle (charge q) is moving in a circle of radius R with an uniform speed v. The associated magnetic moment m is given by

(a) qvr/2

(b) qvR2

(c) qvr2/2

(b) qvr

Answer is (a) $\frac{qvR}{2}$