name two gases which are filled in electric bulb .why such gases are filled in an electric bulb
shelly2442:
when incandescent light bulbs are manufactured,they are filled with an inert gas to insulate the filament and prevent it's sublimation.The pressure inside a freshly manufactured light bulb is something 80%of the normal atmospheric pressure. the gases normally used are argon and a little bit of nitrogen
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Answered by
20
There is no vacuum in the electric bulb. On the contrary, argon gas or argon gas mixed with a little nitrogen is filled in the bulb under some pressure.
Answered by
30
1.argon
2.helium
Argon increases bulb life by preventing the tungsten filaments from deteriorating too quickly.
Helium is used in lighting of the bulb.
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