Answered: A light bulb has 75% efficiency. How…

A light bulb has 75% efficiency. How much energy is wasted if the useful output energy of the bulb is 24 J? is the answer... a. 6.0 J b. 8.0 J c. 18 J d. 32 J e. 51J

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter22: Entropy And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 11PQ

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Question

A light bulb has 75% efficiency. How much energy is wasted if the useful output energy of the bulb is 24 J? is the answer...

a. 6.0 J

b. 8.0 J

c. 18 J

d. 32 J

e. 51J

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