Homework Help: Physical Science Question 4

Posted by Liz on Monday, June 12, 2006 at 8:01pm.

How can a permanent magnet be demagnetized?

A.Cut the magnet in half.
B.Heat the magnet up
C.Strike the magnet with a heavy blow
D.both b and c

You will find the answer if you read this:

http://my.execpc.com/~rhoadley/magcare.htm

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