The filament of a bulb is made up of a and a of electricity. (A) Metal, Conductor (B) Metal, Insulator (C) Non metal, Conductor (D) Non metal, Insulator
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option A. metal, conductor
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tungsten
The filament is the part of the light bulb that produces light. Filaments in incandescent light bulbs are made of tungsten. Whenever an electric current goes through the filament, the filament glows. It may also be known as the electron emitting element in a vacuum tube.
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