Question

Aquil used a strong magnet to stroke the iron nail fifty times in the same direction continuously. After stroking, he wanted to test it by bringing a compass near the tip of the nail. Which one of the following diagrams shows the correct observation?

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

While inducing magnetism in a magnetic material by rubbing method, the iron strip where the north pole of the magnet is touched and rubbing is started becomes the north pole and the end of the iron strip where the magnet leaves the iron strip becomes the south pole.
Therefore, the left end of the iron nail will become north pole and the right end will become south pole.

As the right end of the iron nail will get south polarity, it will attract the north pole of the magnetic needle of the compass.