A 5cm by 5cm rectangular coil of wire with 500 turns carrying a current of 0.1 amos comprising the armature of an electric motor lies in the xy plane. The coil is subjected to a uniform magnetic field B with strength 0.05 Tesla in the z direction as shown in the figure. The armature is free to rotate without friction about the x axis with an assoxiated moment of inertia of 1 x 10^-2 kgm^2. Initially the armature is in
A 5cm by 5cm rectangular coil of wire with 500 turns carrying a current of 0.1 amos comprising the armature of an electric motor lies in the xy plane. The coil is subjected to a uniform magnetic field B with strength 0.05 Tesla in the z direction as shown in the figure. The armature is free to rotate without friction about the x axis with an assoxiated moment of inertia of 1 x 10^-2 kgm^2. Initially the armature is in
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A 5cm by 5cm rectangular coil of wire with 500 turns carrying a current of 0.1 amos comprising the armature of an electric motor lies in the xy plane. The coil is subjected to a uniform magnetic field B with strength 0.05 Tesla in the z direction as shown in the figure. The armature is free to rotate without friction about the x axis with an assoxiated moment of inertia of 1 x 10^-2 kgm^2. Initially the armature is in the (unstable) equilibriu, with magnetic moment m. antiparallel to B, but it begins to rotate after a slight nudge. What is the change in potential energy, and what is its rotation rate, when m is parallel to B?
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