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A current of 27.0 mA is maintained in a single circular loop of 2.40 m circumference....

A current of 27.0 mA is maintained in a single circular loop of 2.40 m circumference. A magnetic field of 0.610 T is directed parallel to the plane of the loop.

(a) Calculate the magnetic moment of the loop.

If you know the circumference of a circle, how do you find the area? mA

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Answer #1

The radius ofthe loop will be. =-. Therefore, the area is. A = ??2-? The magnetic moment ofthe loop is. =0.0124 Am AT The magnitude oftorque is, ?=mB =(0.0124 Am*)(0.610T)-7.55 x 10-3 Nm

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