Multiple choice

In an electric bulb, when electric current is passed through the filament, it gets white hot and produces light. This filament is made of _____________.

  1. copper

  2. iron

  3. aluminium

  4. tungsten

  5. zinc

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. The filament inside a light bulb is made of tungsten because it has an unusually high melting point. When electric current is passed through the filament, it gets white hot and produces light.