The wire of an electric bulb is known as the
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Luminous Wire
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Radiator
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Heating Element
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Filament
D
Correct answer
Explanation
The thin, coiled wire inside an incandescent light bulb that glows when heated by an electric current is called the filament. It is typically made of tungsten because of its high melting point. 'Heating element' is a broader term used for appliances like heaters.