Physics
Grade-7
Easy

Question

The filament of an electric bulb is made up of

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

hintHint:

Tungsten

The correct answer is: Tungsten


    Tungsten is used as a filament in electric bulb because it has high melting point and it does not oxidize. Thus, 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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