Multiple choice

Why are coils of electric irons made of an alloy instead of using pure metal?

  1. Alloys oxidise quickly

  2. Alloys are mechanically weak

  3. Alloys better withstand less heat before melting

  4. Alloys have low resistivity than pure metal

  5. Alloys have a higher melting point

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

Alloys have a higher melting point than pure metal. So, the coils of electric irons are made of an alloy.