explain why a bulb glows on passing current
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Answered by
26
Hey mate ... Here is your answer...
Electricity flows through a thin wire in the light bulb called the filament. ... Therefore as a result of this, the filament heats up and starts glowing, converting electrical energy to light energy. This is because of the Joule-effect, which means that resistances heat up when electrical current runs through them.
Hope this helps you...
Electricity flows through a thin wire in the light bulb called the filament. ... Therefore as a result of this, the filament heats up and starts glowing, converting electrical energy to light energy. This is because of the Joule-effect, which means that resistances heat up when electrical current runs through them.
Hope this helps you...
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Answered by
2
Answer:When the electric current passes through an electric bulb, the filament of the bulb gets heated to a high temperature due to the heating effect of current. So, the bulbs starts to glow. Sometimes the current is too weak and filament of bulb does not get heat sufficiently and bulb does not glow.
Explanation:
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