Physics (10th Edition)

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

Chapter 22 - Electromagnetic Induction - Problems - Page 647: 41


0.150 m

Work Step by Step

Recall that $\epsilon_{0}=NBA\omega$ where $\epsilon_{0}$ is the maximum emf, N is the number of turns, B is the magnetic field, A is the area ,and $\omega$ is the angular speed. Thus, we find: $Area= \frac{\epsilon_{0}}{NB\omega}=\frac{75.0 V}{248\times0.170 T\times79.1 rad/s}$$=0.0225m^{2}$ Length of one side= $\sqrt {A}=\sqrt {0.0225m^{2}}=0.150 m$
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