Physics, asked by chayan24, 1 year ago

How is the life of the filament of an electric bulb is prolonged?

Answers

Answered by rex777

34

An ordinary light bulb contains an inert gas (such as argon or krypton) and nitrogen, which keep the tungstenfilament from oxidizing (i.e. burning up). ... The compound then floats around inside the bulb until it hits the hot filament, whereupon the high temperature breaks it down into iodine vapour and metallic tungsten.

Answered by Bondeep

52

The life of the filament of an electric bulb is prolonged by the tungsten used in it which have a very high melting point of (3380°C).

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