Conceptual Physics (12th Edition)

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

Chapter 24 - Think and Explain: 73

Answer

The MRI machine uses a large magnet, and those objects might contain iron and be attracted to the machine.

Work Step by Step

Even if the metals are nonmagnetic, the changing magnetic field might induce eddy currents in the metal (we will discuss magnetic induction later).
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