Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 21 - Electromagnetic Induction and Faraday's Law - Problems - Page 620: 5

Answer

0.20 volts

Work Step by Step

The magnetic flux changes when the loop rotates. The angle between the field and the normal to the face of the loop changes from 0 degrees to 90 degrees. The magnitude of the average induced emf is calculated using equation 21–2a. $$|\epsilon|=\frac{|\Delta \Phi_B|}{\Delta t}$$ $$=\frac{|\pi(0.0925m)^2(1.5T)(cos90^{\circ}-cos0))|}{0.20s}=0.20volts$$
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