Magnetic Induction

Magnetic induction is the process whereby an object of a magnetic material becomes a magnet when it is near or in contact with a magnet.

• How does a magnet attract iron clips?
  • The S pole of the permanent magnet induces an N pole in the top end of the paper clip
  • The further end of the paper clip becomes an induced S pole
  • Opposite poles attract
  • S pole of permanent magnet attracts the induced N pole of the paper clip
  • Like poles repel
  • S pole of permanent magnet repels S pole of the paper clip
  • Magnetic force decreases with increase in distance
  • Net attractive force acting on paper clip towards the magnet
  • Paper clip is attracted upwards to the magnet