Physics
Grade-7
Easy
Question
It is a part of an electric bulb, and it glows when an electric current is switched on. It is
- A filament
- An element
- A-coil
- A bulb
Hint:
A filament
The correct answer is: A filament
Due to the heating effect of electric current, the bulb glows when the electric current passes through it. The filament of the bulb gets heated to a high temperature and it starts glowing.
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