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26/07/2021 3:31 pm
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Why is an electric light bulb not filled with air? Explain why argon or nitrogen is filled in an electric bulb.
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26/07/2021 3:32 pm
If air is filled in an electric bulb, then the extremely hot tungsten filament would burn up quickly in the oxygen of air. So, the electric bulb is filled with a chemically unreactive gas like argon or nitrogen. These gases do not react with the hot tungsten filament and hence prolong the life of the filament of the bulb.