Answer
(d) the magnetic flux through the loop must vary with time
Work Step by Step
For a current to be induced in a wire loop, the flux must vary with time because the current produced is proportional to the rate of change of flux with time.
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 20 - Electromagnetic Induction and Waves - Learning Path Questions and Exercises - Multiple Choice Questions - Page 722: 3
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