When does the filament of electric …
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Posted by Anirudh Singh 7 years ago
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Yogita Ingle 7 years ago
A bulb will obviously glow when it is connected to a circuit and the circuit is closed . Generally , an electric bulb has a thin filamemt made of tungsten which glows and emits light .
In other words, the filament of the bulb offers resistance to the passage of current . The electric work is done, and hence, the electrical energy changes into heat and light energy .
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