Electrical Engineering · Illumination Engineering
What is the typical luminous efficiency of a general gas-filled tungsten filament lamp?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11 to 5 lumens/watt
- 2180 to 200 lumens/watt
- 3100 to 120 lumens/watt
- 410 to 15 lumens/watt✓
Correct answer
10 to 15 lumens/watt
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