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Explain the following Why is tungsten ...

Explain the following
Why is tungsten used almost exclusively for filament of electric lamps?

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The melting point of tungsten is very high, i.e. `3380^(@)`C,-which enables it not to melt at high temperature and to retain most of the heat. The heating of tungsten makes it glow. This is the cause that tungsten is used almost exclusively for filament of electric lamps.
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