A circular loop of radius 10 cm is carrying a current of 0.1 A. Calcul – InterviewSolution

1.

A circular loop of radius 10 cm is carrying a current of 0.1 A. Calculate its magnetic moment.

Answer»

Data : R = 10 cm = 0.1 m,

N = 1, I = 0.1 A

The magnetic moment,

μ = NIA = NI(πR²)

= (1) (0.1 A) (3.142) (0.1 m)²

= 3.142 × 10^-3 A∙m²

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