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How would you go about demagnetizing a permanent magnet
Chapter 6, Problem 20P(choose chapter or problem)
QUESTION:
Problem 20P
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 = 0?
Questions & Answers
QUESTION:
Problem 20P
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 = 0?
ANSWER:
Solution 20P
Step 1 of 3
To find how to demagnetize a permanent magnet, and restore it to the original state.