College Physics (7th Edition)

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 - Exercises - Page 725: 3


$42^{\circ}$ or $138^{\circ}$

Work Step by Step

Flux = $BAcos\theta$ , $B=0.15T, A=0.1256m^{2}$ Since the magnitude of flux is given, its sign can be positive or negative; From above equation, $cos\theta=\frac{1.4\times10^{-2}}{0.15\times 0.1256}=0.7430$ Thus, $\theta=42^{\circ}$ or $138^{\circ}$
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