i. A square flat coil that has N turns, encloses an area A, and carries a current i has its central axis parallel to a uniform magnetic field in which it is immersed. What is the net torque on the coil? (a) NiA (b) NiB (c) NiAB (d) 0 (e) None of the above. ii. How would the torque change if you rotated the loop such that the field and its central axis are perpendicular? (a) NiA (b) NiAB (c) NiB (d) 0 (e) None of the above.

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 90AP: A wire of length 1.0 m is wound into a single-turn planar loop. The loop carries a current of 5.0 A,...
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  1. i. A square flat coil that has N turns, encloses an area A, and carries a current i has its central axis parallel to a uniform magnetic field in which it is immersed. What is the net torque on the coil?

    (a) NiA (b) NiB

    (c) NiAB (d) 0

    (e) None of the above.

    ii. How would the torque change if you rotated the loop such that the field and its central axis are perpendicular?

    (a) NiA (b) NiAB

    (c) NiB (d) 0

    (e) None of the above.

i. A square flat coil that has N turns, encloses an area A, and carries a current i has its central axis
parallel to a uniform magnetic field in which it is immersed. What is the net torque on the coil?
(a) Ni A
(b) NiB
(c) NiAB
(d) 0
(e) None of the above.
ii. How would the torque change if you rotated the loop such that the field and its central axis are
perpendicular?
(a) NiA
(b) NiAB
(c) NiB
(d) 0
(e) None of the above.
Transcribed Image Text:i. A square flat coil that has N turns, encloses an area A, and carries a current i has its central axis parallel to a uniform magnetic field in which it is immersed. What is the net torque on the coil? (a) Ni A (b) NiB (c) NiAB (d) 0 (e) None of the above. ii. How would the torque change if you rotated the loop such that the field and its central axis are perpendicular? (a) NiA (b) NiAB (c) NiB (d) 0 (e) None of the above.
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