Physics
Grade-7
Easy
Question
Identify the element that is used for making the filament in bulbs.
- Copper
- Tungsten
- Aluminum
- Silver
Hint:
Tungsten
The correct answer is: Tungsten
The element used for making filaments in bulbs is made up of tungsten because of its high melting point and high resistivity and it does not oxidize. Tungsten filament does not melt even when a large amount of heat is produced due to passage of current through the filament.
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