Explanation Write the expression for the for induced emf in the coil. e = − d Φ B d t (I) Here, e is induced emf, Φ B is magnetic flux and d t is change in time. Write the expression for induced current in the coil. I = e R (II) Here, I is current and R is resistance in coil. Substitute − d Φ B d t for e in equation (II) to find the current. I = − 1 R d Φ B d t Substitute a t 3 − b t 2 for Φ B in the above equation to find the current. I = − 1 R d d t ( a t 3 − b t 2 ) = − 1 R ( 3 a t 2 − 2 b t ) Therefore, current is, I = − 1 R ( 3 a t 2 − 2 b t ) (III) Here, a and b are constants

Physics for Scientists and Engineers with Modern, Revised Hybrid (with Enhanced WebAssign Printed Access Card for Physics, Multi-Term Courses)

9th Edition

ISBN: 9781305266292

Author: Raymond A. Serway, John W. Jewett

Publisher: Cengage Learning

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Chapter 31, Problem 75AP

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The maximum induced current in the ring.

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Chapter 31, Problem 74AP

Chapter 31, Problem 76AP

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Chapter 31 Solutions

Physics for Scientists and Engineers with Modern, Revised Hybrid (with Enhanced WebAssign Printed Access Card for Physics, Multi-Term Courses)

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The maximum induced current in the ring.

Solution Summary: The author writes the expression for induced emf in the coil. I=eR and R are resistance in coil, respectively.

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Chapter 31 Solutions