Electrical Engineering · Illumination
How does the addition of halogen vapour in halogen lamps improve their performance?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It decreases the operating temperature.
- 2It increases the filament's resistance.
- 3It initiates a regenerative cycle that restores evaporated tungsten back to the filament.✓
- 4It enhances the bulb's transparency.
Correct answer
It initiates a regenerative cycle that restores evaporated tungsten back to the filament.
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