How would you go about demagnetizing a permanent magnet (such as the wrench we have been discussing,

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How would you go about demagnetizing a permanent magnet (such as the wrench we have been discussing, at point c in the hysteresis loop)? That is, how could you restore it to its original state, with M = 0 at I = 07?

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Introduction to Electrodynamics

ISBN: 978-8120316010

3rd Edition

Authors: David J. Griffiths

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Question Posted: Nov 27, 2010 06:32 AM

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How would you go about demagnetizing a permanent magnet (such as the wrench we have been discussing,

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Place the object in a region of zero magnetic field and hea...View the full answer

Introduction to Electrodynamics

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