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What Is An Electric Lamp? |
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Answer» An ELECTRIC lamp is a glass bulb, often filled with nitrogen or some other CHEMICALLY inactive gas CONTAINING a wire or filament usually made of tungsten in which the passage of an electric current through the filament heats it to a white heat and then to the VISIBLE radiation i.e. light. An electric lamp is a glass bulb, often filled with nitrogen or some other chemically inactive gas containing a wire or filament usually made of tungsten in which the passage of an electric current through the filament heats it to a white heat and then to the visible radiation i.e. light. |
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