why an electric bulb gives out light when connected in circuit and switched on
Answers
Answered by
11
Explanation:
Because a current is flowing through it
when the current flows through the filament of bulb which is made up of tungsten it becomes hot and begins to emit light...
Answered by
4
Answer:
because electruc bulb need electricity to glow and when it is connected with circuit and switced on the electricity start flowing it makes bulb too glow.
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