a) If an incandescent light bulb requires 100 units of potential energy to deliver only about 12 units of kinetic energy (in the form of incandescent light), then it has a first-law efficiency of: А. 12% B. 88% C. 100% D. 112% E. 188% b) The above example of an incandescent light bulb loses what percentage of potential energy as heat? А. 12% В. 88% С. 100% D. 112% E. 188%

a) If an incandescent light bulb requires 100 units of potential energy to deliver only about 12 units of kinetic energy (in the form of incandescent light), then it has a first-law efficiency of: А. 12% B. 88% C. 100% D. 112% E. 188% b) The above example of an incandescent light bulb loses what percentage of potential energy as heat? А. 12% В. 88% С. 100% D. 112% E. 188%

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter15: Thermodynamics

Section: Chapter Questions

Problem 27PE: This problem compares the energy output and heat transfer to the environment by two different types...

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