Answer
$0.5$
Work Step by Step
If charge q is moved, charge $Q-q$ remains. By Coulumb's Law, the maximum force will result when $q(Q-q)$ is maximized. This is maximized when $q=0.5Q$, so the answer is $0.5$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 21 - Coulomb's Law - Problems - Page 624: 1
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