Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 25 - Think and Explain: 69

Answer

The secondary current is half of the current in the primary.

Work Step by Step

Power = (current)(voltage), and the power in the primary equals the power in the secondary. Doubling the voltage means halving the current.
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