College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 22 - Problems - Page 867: 78


The power dissipated by the bulb is $0.987~W$

Work Step by Step

When the angle is $20.0^{\circ}$, the amount of power received by the antenna will be reduced by a factor of $cos~20.0^{\circ}$. We can find the power dissipated by the bulb: $P' = (1.05~W)~cos~20.0^{\circ} = 0.987~W$ The power dissipated by the bulb is $0.987~W$
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