Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 21 - Magnetic Forces and Magnetic Fields - Check Your Understanding - Page 589: 7

Answer

(b) No, because it will move around a different circle in a counterclockwise direction.

Work Step by Step

The motion of a charge particle moving in a uniform magnetic field is governed by the magnetic force acting on that particle. The direction of magnetic force is always perpendicular to both the velocity of the charge particle and the magnetic field. If the velocity of the particle is reversed, the direction of the magnetic force will be changed according to the right hand rule. Thus, a particle which is circulating in clockwise direction will move around a different circle in a counterclockwise direction after reversing its velocity.
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