5. A 100 W light bulb is left on for 100.0 hours. The cost per kwh is $0.20. Over this period of time, how much did it cost to use the bulb? A. $2.00 B. $0.80 C. $4.00 D. $6.00 E. $1.00

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter21: Alternating-Current Circuits And Electromagnetic Waves
Section: Chapter Questions
Problem 1P: (a) What is the resistance of a light bulb that uses an average power of 75.0 W when connected to a...
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5.
A 100 W light bulb is left on for 100.0 hours. The cost per kwh is $0.20. Over this
period of time, how much did it cost to use the bulb?
A. $2.00
B. $0.80
C. $4.00
D. $6.00
E. $1.00
Transcribed Image Text:5. A 100 W light bulb is left on for 100.0 hours. The cost per kwh is $0.20. Over this period of time, how much did it cost to use the bulb? A. $2.00 B. $0.80 C. $4.00 D. $6.00 E. $1.00
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