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The filament lasts for a long time because argon is inert and will not oxidize the filament even at high temperatures.

If air were used, the oxygen would quickly react with and destroy the hot filament within seconds of it being turned on.

Quick experiment: Attach a wire to the positive and negative sides of a large flashlight battery (the large rectangular ones with the two coils coming from the top... I can't think of the proper size). Attach the back of one alligator clip to the open end of each wire (so the clip part is not clipped on the wire). String out some steel wool until you have a single strand (or two or three wound together). This essentially is a light bulb filament. Clip it into the two alligator clips and watch how fast it burns.

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โˆ™ 2012-03-06 01:24:04
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โˆ™ 2016-03-29 18:54:38

Argon is often used when an inert atmosphere is needed. It is used in this way to protect the weld area and in incandescent light bulbs to stop oxygen from corroding the filament.

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Q: Why is argon used in a light bulb instead of air?
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In a bulb noble gas argon is used . why is argon is used instead of air in the light bulb?

It won't burn the filament.


Is argon used in a light bulb?

yes argon is used for light bulb and it is not reactive


Which gas used in light bulb?

The gas in a light bulb is Argon


In a bulb a noble gas argon is used why is argon used instead of air in the light bulb?

Argon can be used in bulbs much like neon can; where neon gives off a reddish-orange light, argon is a bluish tint. If argon is used in an incandescent bulb it's probably to protect the filament from oxygen in the air. However, I'm not sure this is ever actually done; I know nitrogen is sometimes used for this purpose, but using argon seems to be overkill.


Why is argon used instead on air in the light bulb?

The filament in the light bulb is heated to a very high temperature. At such a temperature oxygen from the air would oxidise the metal(s) in the filament and thereby destroy the bulb. Using an inert gas such as argon in the bulb prevents such oxidation.


Which gases are used in a light bulb?

argon and xenon i think


Can argon be put in a light bulb?

Yes and it is often used


What property of argon is used in light bulb?

It doesn't react


What property of argon is used In a light bulb?

It doesn't react


Which gas is used in light bulb?

regular light bulbs have argon and/or nitrogen


Why is argon used in light bubs instead of vacuum?

argon is no reactive how ever vacuum


Why air is not filled in electric bulb?

If air were used in an electric bulb the filament, which becomes extremely hot when the light is on, would rapidly oxidize and burn out in seconds. Instead the bulb is filled with argon, which is inert.

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