Conceptual Physics (12th Edition)

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

Chapter 23 - Reading Check Questions (Comprehension): 16


If a current is 60 hertz (60 Hz), it is alternating current (ac) and the direction continually changes. Sixty full sine waves of current are completed in 1.0 seconds.

Work Step by Step

This is discussed on page 437, and shown in the second graph of Figure 23.9.
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