Physics
Electricity and Magnetism
A magnetic dipole with a dipole moment of magnitude 0.020

A magnetic dipole with a dipole moment of magnitude 0.020 J/T is released from rest in a

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A magnetic dipole with a dipole moment of magnitude 0.020 J/T is released from rest in a uniform magnetic field of magnitude 52mT. The rotation of the dipole due to the magnetic force on it is unimpeded. When the dipole rotates through the orientation where its dipole moment is aligned with the magnetic field, its kinetic energy is 0.80mJ.

(a) What is the initial angle between the dipole moment and the magnetic field?

(b) What is the angle when the dipole is next (momentarily) at rest?

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a The kinetic energy gained is due to the potential energy decrease as the dipole swings from a ...View the full answer

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 21, 2011 05:54 AM

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