A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is A. 8.57% B. 42.85% C. 4.28% D. 85.7%
A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is A. 8.57% B. 42.85% C. 4.28% D. 85.7%
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter17: Resistive-inductive Series Circuits
Section: Chapter Questions
Problem 3RQ: 3. What is power factor?
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![A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is
A. 8.57%
B. 42.85%
C. 4.28%
D. 85.7%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0fcd7d5c-b9e1-4c64-a7ea-15b8af1823cc%2F552f1c83-936b-4e41-8aa5-188c8f1880de%2Fyongdy_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is
A. 8.57%
B. 42.85%
C. 4.28%
D. 85.7%
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