The efficiency for incandescent light bulbs is typically about 14 lumens per watt (lm/W) and that for LED bulbs is typically about 90 lm/W. Use Ohm’s law to calculate the total light output in lumens of each type of bulb if the incandescent bulb has resistance of 10 Ω and the LED bulb has resistance of 2 Ω and each are supplied with a current of 2 A. Question 1 options: Incandescent: 230 lm. LED: 360 lm. Incandescent: 7840 lm. LED: 64800 lm. Incandescent: 112 lm. LED: 3600 lm. Incandescent: 560 lm. LED: 720 lm
The efficiency for incandescent light bulbs is typically about 14 lumens per watt (lm/W) and that for LED bulbs is typically about 90 lm/W. Use Ohm’s law to calculate the total light output in lumens of each type of bulb if the incandescent bulb has resistance of 10 Ω and the LED bulb has resistance of 2 Ω and each are supplied with a current of 2 A. Question 1 options: Incandescent: 230 lm. LED: 360 lm. Incandescent: 7840 lm. LED: 64800 lm. Incandescent: 112 lm. LED: 3600 lm. Incandescent: 560 lm. LED: 720 lm
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter16: Installation Of Heating, Cooling, And Refrigeration Systems
Section: Chapter Questions
Problem 2RQ
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The efficiency for incandescent light bulbs is typically about 14 lumens per watt (lm/W) and that for LED bulbs is typically about 90 lm/W.
Use Ohm’s law to calculate the total light output in lumens of each type of bulb if the incandescent bulb has resistance of 10 Ω and the LED bulb has resistance of 2 Ω and each are supplied with a current of 2 A.
Question 1 options:
|
Incandescent: 230 lm. LED: 360 lm. |
|
Incandescent: 7840 lm. LED: 64800 lm. |
|
Incandescent: 112 lm. LED: 3600 lm. |
|
Incandescent: 560 lm. LED: 720 lm. |
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