The 20-W LED bulb can provide the same amount of light output as the 100-W incandescent light bulb. How much percentage you could save for using the LED bulb in place of the incandescent bulb for one year, assuming ₱7.50 per kilowatt-hour is the average energy rate charged by the power company? Assume that the bulb is turned on for 7 hours a day. a.) 20% b.) 80% c.) 150% d.) none of the above

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Author:Paul Peter Urone, Roger Hinrichs
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Chapter20: Electric Current, Resistance, And Ohm's Law
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Problem 52PE: What would be the maximum cost of a CFL such that the total cost (investment plus operating) would...
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The 20-W LED bulb can provide the same amount of light output as the 100-W incandescent light bulb. How much percentage you could save for using the LED bulb in place of the incandescent bulb for one year, assuming ₱7.50 per kilowatt-hour is the average energy rate charged by the power company? Assume that the bulb is turned on for 7 hours a day.

a.) 20%

b.) 80%

c.) 150%

d.) none of the above

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