Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 28 - Fundamentals of Circuits - Exercises and Problems - Page 790: 16


$R = 25~\Omega$

Work Step by Step

We can find the equivalent resistance of the three resistors: $R_{eq} = \frac{V}{I}$ $R_{eq} = \frac{5.0~V}{0.10~A}$ $R_{eq} = 50~\Omega$ We can find the value of $R$: $R_{eq} = 10~\Omega + 15~\Omega + R$ $R = R_{eq} - 10~\Omega - 15~\Omega$ $R = 50~\Omega - 10~\Omega - 15~\Omega$ $R = 25~\Omega$
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