It seems hard to justify spending $4.00 for an LEDlightbulb when an ordinary incandescent bulb costs$0.50. To see if it makes sense, compare a 60 Wincandescent bulb that lasts 1000 hours to a 10 WLED bulb that lasts 20,000 hours. (These aretypical values.) Both bulbs produce the sameamount of visible light and are interchangeable. - Part AIf electricity costs $0.15/kWh, about the national average, what is the total cost--purchase price plus energy cost--toobtain 20,000 hours of light from the incandescent bulb? This is called the life-cycle cost.Express your answer in dollars.—| ΑΣΦ?LCCincandescent =SubmitPrevious Answers Request Answerf↑O$

Answered: Image /qna-images/answer/c2481a22-bc92-41b4-9242-c1e2a9ac90f0.jpg

It seems hard to justify spending $4.00 for an LED lightbulb when an ordinary incandescent bulb costs $0.50. To see if it makes sense, compare a 60 W incandescent bulb that lasts 1000 hours to a 10 W LED bulb that lasts 20,000 hours. (These are typical values.) Both bulbs produce the same amount of visible light and are interchangeable.

It seems hard to justify spending $4.00 for an LED lightbulb when an ordinary incandescent bulb costs $0.50. To see if it makes sense, compare a 60 W incandescent bulb that lasts 1000 hours to a 10 W LED bulb that lasts 20,000 hours. (These are typical values.) Both bulbs produce the same amount of visible light and are interchangeable.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter16: Fundamentals Of Light

Section: Chapter Questions

Problem 31A

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