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Why do voltage, current, and power go through zero 120

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs ISBN: 9781938168000 42

Solution for problem 16CQ Chapter 20

College Physics | 1st Edition

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College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

College Physics | 1st Edition

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Problem 16CQ

Problem 16CQ

Why do voltage, current, and power go through zero 120 times per second for 60-Hz AC electricity?

Step-by-Step Solution:
Step 1 of 3

Solution 16CQ

 Frequency is defined as the number of cycle per second. Voltage, current and power generally has standard sine waves.

One sine wave crosses zero twice to complete one cycle. Frequency is 60 Hz means 60 cycles per second. Hence, for 60 Hz it will cross zero 120 times per second.

Step 2 of 3

Chapter 20, Problem 16CQ is Solved
Step 3 of 3

Textbook: College Physics
Edition: 1
Author: Paul Peter Urone, Roger Hinrichs
ISBN: 9781938168000

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Why do voltage, current, and power go through zero 120