If the cost of electricity in your area is 12 cents per kWh, what is the total cost (capital plus operation) of using a 60-W incandescent bulb for 1000 hours (the lifetime of that bulb) if the bulb cost 25 cents? If we replace this bulb with a compact fluorescent light that provides the same light output, but at one- quarter the wattage, and which costs $1.50 but lasts 10 times longer (10,000 hours), what will that total cost be? How do they compare?
If the cost of electricity in your area is 12 cents per kWh, what is the total cost (capital plus operation) of using a 60-W incandescent bulb for 1000 hours (the lifetime of that bulb) if the bulb cost 25 cents? If we replace this bulb with a compact fluorescent light that provides the same light output, but at one- quarter the wattage, and which costs $1.50 but lasts 10 times longer (10,000 hours), what will that total cost be? How do they compare?
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Transcribed Image Text:Problem 2
If the cost of electricity in your area is 12 cents per kWh, what
is the total cost (capital plus operation) of using a 60-W
incandescent bulb for 1000 hours (the lifetime of that bulb) if
the bulb cost 25 cents? If we replace this bulb with a compact
fluorescent light that provides the same light output, but at one-
quarter the wattage, and which costs $1.50 but lasts 10 times
longer (10,000 hours), what will that total cost be? How do
they compare?
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