A current of 8.2 A is maintained in a single circular loop having a circumference of 80 cm. An external magnetic field of 2.0 T is directed so that the angle between the field and the plane of the loop is 20°. Determine the magnitude of the torque (in units of N.m) exerted on the loop by the magnetic forces.

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 81AP: A 5.0-m section of a long, straight wire carries a current of 10 A while in a uniform magnetic field...
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A current of 8.2 A is maintained in a single circular loop having a circumference of 80 cm. An external magnetic field of
2.0 T is directed so that the angle between the field and the plane of the loop is 20°. Determine the magnitude of the
torque (in units of N.m) exerted on the loop by the magnetic forces.
Select one:
OA. 0.55
OB. 0.65
OC. 0.29
OD. 0.78
OE. 0.87
Transcribed Image Text:A current of 8.2 A is maintained in a single circular loop having a circumference of 80 cm. An external magnetic field of 2.0 T is directed so that the angle between the field and the plane of the loop is 20°. Determine the magnitude of the torque (in units of N.m) exerted on the loop by the magnetic forces. Select one: OA. 0.55 OB. 0.65 OC. 0.29 OD. 0.78 OE. 0.87
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