When we pass electric current through the bulb, it glows; the bulb glows due to ___________

Electric effect of current

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Heating effect of current

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Glowing effect of current

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Lighting effect of current

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Solution

The correct option is B
Heating effect of current

There is a filament in the bulb, which has high resistance for current. Hence, when we pass the current through the filament, the filament blocks the path of the current due to high resistance and due to more and more incoming current and less outgoing current, the filament gets heated up and it starts to glow.

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Similar questions

Q. Statement 1: It is observed that sometimes a bulb glows brighter and sometimes it glows dim.

Statement 2: Glowing brighter and dimmer depends on heating effect of current. More current produces more heating effect making the bulb glow brighter and vice-versa.

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