Filament of a bulb is generally made up of _______

Copper

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Silver

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Tungsten

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Mercury

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Solution

The correct option is C Tungsten
The melting point and resistivity of Tungsten are very high. At high temperatures, it does not burn quite well. The temperature of the electric lamps is extremely high. Hence, tungsten is mainly used as the heating element of electric bulbs. Tungsten has a very high melting point and very high resistivity so does not burn easily at a high temperature.

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