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Electric current is fed to the lamps and they light up, that way the lighting system works.

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In the case of incandescent lamps, the work done on the filament by the electrical energy causes its internal energy to increase. This increase in internal energy is accompanied by an increase in temperature resulting in heat transfer from the filament to the surroundings, together with some energy in the visible light spectrum.

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Q: Describe how electrical energy is used to enable lighting systems to function?
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