A charge q is distributed uniformly around a thin ring of radius r. The ring is rotating
Question:
A charge q is distributed uniformly around a thin ring of radius r. The ring is rotating about an axis through its center and perpendicular to its plane, at an angular speed w.
(a) Show that the magnetic moment due to the rotating charge has magnitude μ = 1/2qwr2.
(b) What is the direction of this magnetic moment if the charge is positive?
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a The period of rotation is T 2n and in this time all the charge passes any fixed poin...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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