Answer
$R= 75\Omega$
Work Step by Step
All three resistors are in series
$R_{eq} = R=50\Omega+R$
given $R_{eq} =200\Omega $, therefore
$200\Omega = 2R +50\Omega$
$2R = 150\Omega$
$R= 75\Omega$
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)
by Knight, Randall D.
Published by
Pearson
ISBN 10:
0321740904
ISBN 13:
978-0-32174-090-8
Chapter 31 - Fundamentals of Circuits - Exercises and Problems - Page 915: 13
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