Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 21 - Electromagnetic Induction and Faraday's Law - Misconceptual Questions - Page 619: 11

Answer

Choice D.

Work Step by Step

Power is the product of the voltage and current. Equations 21-6 and 21-7 show that when a transformer increases the voltage, it decreases the current by the same ratio, keeping the power constant. Energy is conserved.
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