Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 24 - Think and Do: 31

Answer

This is a hands-on demonstration. Try this with your friends, and be prepared to explain the physics of the demonstration to them.

Work Step by Step

You made a bar magnet by stroking it with a strong magnet. This aligned the domains (pages 456-457) in the needle, and then you watched it align with the Earth's field.
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