Physics (10th Edition)

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

Chapter 22 - Electromagnetic Induction - Problems - Page 645: 22


5.2 $\Omega$

Work Step by Step

N=12, $\Delta \Phi=(4.0-9.0)Wb= -5.0 Wb$, $\Delta t= 0.050s$ and I=230 A. $\epsilon=-N\frac{\Delta \Phi}{\Delta t}= -12\times\frac{-5.0 Wb}{0.050 s}= 1200 V$ Thus, we find: Resistance r=$\frac{\epsilon}{I}=\frac{1200 V}{230 A}= 5.2 \Omega$
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