A current of 12.0 mA is maintained in a single circular loop of 3.50 m circumference. A magnetic field of 0.480 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. 1.17e-2 If you know the circumference of a circle, how do you find the area? mA • m2 (b) What is the magnitude of the torque exerted by the magnetic field on the loop? 5.615e-3 You appear to have correctly calculated the torque using your incorrect result for the magnetic moment from part (a). mN · m

A current of 12.0 mA is maintained in a single circular loop of 3.50 m circumference. A magnetic field of 0.480 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. 1.17e-2 If you know the circumference of a circle, how do you find the area? mA • m2 (b) What is the magnitude of the torque exerted by the magnetic field on the loop? 5.615e-3 You appear to have correctly calculated the torque using your incorrect result for the magnetic moment from part (a). mN · m

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section: Chapter Questions

Problem 88PQ

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