Question

Why is the toungsten use almost exclusively for filament of electric lamps?

Answer 1

Tungsten are almost used for filament of electric bulb as its melting point is very high and produces bright lights when electricity is passed through it.

Answer 2

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The melting point and resistivity of tungsten are very high. It does not burn very easy at a high temperature. The electric lamps glow at very high temperatures. Hence, tungsten is mainly used as heating element of electric bulbs.

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