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 27 - Current and Resistance - Exercises and Problems - Page 763: 38


The resistance of the battery is $~0.43~\Omega$

Work Step by Step

We can find $R_b$, the resistance of the battery: $R_b = \frac{V}{I}$ $R_b = \frac{9.0~V}{21~A}$ $R_b = 0.43~\Omega$ The resistance of the battery is $~0.43~\Omega$
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