An electric bulb glows due to the _________ of electric current.

chemical effect

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magnetic effect

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heating effect

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physical effect

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Solution

The correct option is C heating effect
When an electric bulb is connected to a power source, electric current flows through the circuit. Flow of an electric current in a conductor generates a lot of heat due to the collisions between electrons and atoms. When current flows through the filament, it generates both heat and light. This happens due to the heating effect of electric current.

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An electric bulb draws 1.2 A current at 6.0 V. Find the resistance of filament of bulb while glowing.

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