Available Answers

1. 1.

   A horse shoe magnet has two iron needles attached at its ends. Show on a diagram the positions occupied by the needles and name the phenomenon which comes into play.

2. 2.

   You are given two identical bars. one of which is magnetised. How will you select the magnetised bar?

3. 3.

   You are given a magnetised bar and a compass needle. How will you mark polartiy at the ends of bar?

4. 4.

   What is a lodestone?

5. 5.

   What is a natural magnet? State two limitations of a natural magnet.

6. 6.

   What is an artificial magnet? State two reasons why do we need the artificial magnets.