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Asked by: Analiza Pentsak
hobbies and interests candle and soap makingWhat is incandescent light bulbs used for?
Also asked, how does an incandescent light bulb work?
Incandescent light bulbs are the result of an electric current passing through a tungsten filament and heating it to a temperature hot enough to produce light a secondary output. Approximately 95% of the electricity applied to the filament in an incandescent bulb is then lost as heat rather than light.
Consequently, what is in an incandescent light bulb?
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.
The emitted ultraviolet rays change into visible light as it strikes the fluorescent coating. CFLs are four times more energy efficient than incandescent bulbs. Hence, incandescent lamps are not used that often.