Why are bulbs filled with argon?
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Bulb is filled with argon because it is a inert gas and it does not oxidise even at higher temperature.
Anonymous:
But mostly Nitrogen is used as it is cheaper inert gas at bulb temperature
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Argon gas is used in fluorescent and incandescent light bulbs to stop the oxygen in the light bulbs from corroding the hot tungsten filament.The use of argon in light bulbs prevents the evaporation of the tungsten filaments, which results in increased light bulb life.
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