Question

1. Write an activity to find out the poles of a magnet.​

Answer 1

Explanation:

1. Take two bar magnets A and B. suspend one magnet A with a silk thread from support so that it is free to swing. In the north-south direction, the magnet will come to rest. The north pole of the magnet is in the north and the south pole of the magnet is in the south direction.
2. Now hold the other magnet B in your hand, bring its north pole near the north pole of the suspended magnet A (such that the two magnets do not touch each other) as shown in the figure. It is observed that magnet A moves away from magnet B. thus this shows that the like poles repel each other.

3. now bring the south pole of magnet B near the north pole of the suspended magnet A. it is observed that magnet A moves towards magnet B. this shows that unlike poles repel each other.

Answer 2

Answer:

1) Take a bar magnet and place a steel pin at some distance. Then we observe that nothing happens but when we bring the steel pin near the pole of a bar magnet, we notice that the pin sticks to the poles of the magnet. This experiment shows that maximum magnetic force acts at the poles of the magnet.

2) Take two bar magnets A and B. suspend one magnet A with a silk thread from support so that it is free to swing. In the north-south direction, the magnet will come to rest. The north pole of the magnet is in the north and the south pole of the magnet is in the south direction.

Now hold the other magnet B in your hand, bring its north pole near the north pole of the suspended magnet A (such that the two magnets do not touch each other) as shown in the figure. It is observed that magnet A moves away from magnet B. thus this shows that the like poles repel each other.now bring the south pole of magnet B near the north pole of the suspended magnet A. it is observed that magnet A moves towards magnet B. this shows that unlike poles repel each other.