Chapter 20: Problem 10: Suppose the cost of an incandescent bulb is 21 cents and that electricity costs 14 cents/kWh. Compact fluorescent lightbulbs (CFL), while they are more expensive, use 1/10 of the power for the same amount of illumination. a) What would be the maximum cost (in dollars) of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60 W bulbs? Assume both lightbulbs run for 1000 h.
Chapter 20: Problem 10: Suppose the cost of an incandescent bulb is 21 cents and that electricity costs 14 cents/kWh. Compact fluorescent lightbulbs (CFL), while they are more expensive, use 1/10 of the power for the same amount of illumination. a) What would be the maximum cost (in dollars) of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60 W bulbs? Assume both lightbulbs run for 1000 h.
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter32: Alternating-current Circuits
Section: Chapter Questions
Problem 1P: (a) What is the resistance of a lightbulb that uses an average power of 75.0 W when connected to a...
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Chapter 20: Problem 10: Suppose the cost of an incandescent bulb is 21 cents and that electricity costs 14 cents/kWh. Compact fluorescent lightbulbs (CFL), while they are more expensive, use 1/10 of the power for the same amount of illumination.
a) What would be the maximum cost (in dollars) of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60 W bulbs? Assume both lightbulbs run for 1000 h.
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