WBCS.LIVE practice question

Which metal is used for making the filament of an incandescent electric bulb?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

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

Correct answer and explanation

Correct answer: Tungsten

Explanation: āœ… Correct Answer: C) Tungsten šŸ“š Explanation: Tungsten ($W$) is used for bulb filaments because it has the highest melting point of all metals (approximately 3422Ā°C). This allows the filament to reach very high temperatures and glow brightly without melting or evaporating quickly. The bulb is typically filled with an inert gas like argon to prevent the tungsten from oxidizing at such extreme heat.