Physics
Grade-7
Easy

Question

Identify the element that is used for making the filament in bulbs.

  1. Copper
  2. Tungsten
  3. Aluminum
  4. Silver

hintHint:

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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