Physics
Grade-8
Easy

Question

A compass needle changes its alignment only in the presence of ____.

  1. Nothing
  2. Its glass covering
  3. Another magnet
  4. An iron-bar

hintHint:

another magnet

The correct answer is: Another magnet


    The needle of a magnetic compass is itself a small permanent magnet which deflects in the presence of another external magnetic field, owing to the force it experiences due to the said source.