What is a filament in electric bulb?
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Explanation:
Incandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed. Contact wires and a base with two (or more) conductors provide electrical connections to the filament.
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Answer:
In an incandescent type of bulb, an electric current is passed through a thin metal filament, heating the filament until it glows and produces light. Incandescent bulbs typically use a tungsten filament because of tungsten's high melting point.
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