Multiple choice

An electric iron is based on the principle of _________________.

  1. magnetic effect of current

  2. chemical effect of current

  3. heating effect of current

  4. none of these

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

Heating effect of electricity is one of the widely used effects in the world. When electric current is passed through a conductor, it generates heat due to the resistance it offers to the current flow. In iron there is a resistance wire which heats up.