Conceptual Physics (12th Edition)

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

Chapter 24 - Think and Explain: 50

Answer

The axis of the current-carrying loop of wire should be lined up with the magnetic field.

Work Step by Step

If the axis of the current loop is aligned with the external field, that is its equilibrium position (see Figure 24.19) and no torque will be exerted on the loop of wire.
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