Conceptual Physics (12th Edition)

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

Chapter 24 - Think and Explain: 62

Answer

See below.

Work Step by Step

The magnetic force that acts on a charged particle is always perpendicular to the particle's motion. There is no component of the force that acts along the instantaneous direction of motion, so the field cannot speed up, or slow down, a moving charged particle.
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