Physics (10th Edition)

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

Chapter 21 - Magnetic Forces and Magnetic Fields - Focus On Concepts - Page 607: 8

Answer

(d) proton, counterclockwise

Work Step by Step

We have $r = \frac{mv}{|q|B}$ Since q,v and B is same so $r $ will be maximum for proton because$m_p >m_e$. So proton will have larger circle. And will move in counterclockwise by right hand thumb rule.
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