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What are light bulb filaments made of?

In: Inventions, Electrical Engineering, Elements and Compounds [Edit categories]

Answer:

Incandescent light bulbs have filaments which are made mainly from the element tungsten and/or alloys which include tungsten.

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Tungsten is the metal element used for the filaments in incandescent light bulbs.

Experiments were made with different materials to use as the filament, including natural fibres, pure metals and alloys of different metals, to find the material which had the longest life whilst glowing brightly enough to give out visible light. The metal Tungsten was found to be the best, because of its high melting point (almost 3700 K) and good resistance to electrical current.

For more information see the answer to the Related Question shown below.

First answer by ID1162271680. Last edit by Martinel. Contributor trust: 886 [recommend contributor ]. Question popularity: 38 [recommend question].

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