12. Bulb A is a 60 W incandescent bulb and bulb B is a 10 W LED bulb. Both bulbs produce 4.0W of visible light energy. What are the efficiencies of these bulbs?A. Bulb A: 15%; Bulb B: 25%B. Bulb A: 6%; Bulb B: 10%C. Bulb A: 6.7%; Bulb B: 40%D. Bulb A: 60%; Bulb B: 10% PHYSICS FINAL12. Bulb A is a 60 W incandescent bulb and bulb B is a 10 W LED bulb. Both bulbs produce 4.0W of visible light energy. What are the efficiencies of these bulbs?ABulb A: 15%; Bulb B: 25%B. Bulb A: 6%; Bulb B: 10%С.Bulb A: 6.7%; Bulb B: 40%D.Bulb A: 60%; Bulb B: 10%

Given: The reading of bulb A is 60 W. The reading of bulb B is 10 W. The output power is 4 W.

Answered: 2. Bulb A is a 60 W incandescent bulb…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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12. Bulb A is a 60 W incandescent bulb and bulb B is a 10 W LED bulb. Both bulbs produce 4.0W of visible light energy. What are the efficiencies of these bulbs? A. Bulb A: 15%; Bulb B: 25% B. Bulb A: 6%; Bulb B: 10% C. Bulb A: 6.7%; Bulb B: 40% D. Bulb A: 60%; Bulb B: 10%

PHYSICS FINAL
12. Bulb A is a 60 W incandescent bulb and bulb B is a 10 W LED bulb. Both bulbs produce 4.0
W of visible light energy. What are the efficiencies of these bulbs?
A
Bulb A: 15%; Bulb B: 25%
B. Bulb A: 6%; Bulb B: 10%
С.
Bulb A: 6.7%; Bulb B: 40%
D.
Bulb A: 60%; Bulb B: 10%

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