Question
What is the function of the filament in an electric bulb? What is the principle on which working of a bulb is based on? [2 MARKS]
Answer:
:
The function of filament: 1Mark
The principle: 1 Mark
The thin wire in an electric bulb that gives off light is called the filament. Due to the high resistance of the filament and heating effect of electric current, filament glows and gives us light.
The working of the bulb is based on the principle of the heating effect of electric current.
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:
The function of filament: 1Mark
The principle: 1 Mark
The thin wire in an electric bulb that gives off light is called the filament. Due to the high resistance of the filament and heating effect of electric current, filament glows and gives us light.
The working of the bulb is based on the principle of the heating effect of electric current.
Was this answer helpful ?
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