Which gas is used in common incandescent bulbs?
A.
NitrogenB.
OxygenC.
HydrogenD.
ArgonAnswer & Solution
Answer:
Nitrogen
Solution:
Nitrogen is used in incandescent bulbs to prevent the
tungsten filament from oxidizing at high temperatures. It is an inert and
cost-effective gas that reduces filament evaporation, prolonging the bulb's
life. Sometimes, it is mixed with argon for better performance.
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