Electrical Engineering ⇒ Topic : Electric Lamps and Bulbs
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Sunita
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Electric Lamps and Bulbs Electric bulbs glow and give out light when the filament is heated to very high temperatures by passing a current through it. Modern lamps have a tungsten filament and are gas filled. The filament is in the shape of a coil and is wound into a helix. These lamps, are very common and are used for lighting rooms, houses etc. in ratings up to 100 W. | |
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