Poles of a Magnet

Q.

Which of the following statements is correct?

1. Natural magnets were made in the laboratory.

2. Unlike poles of magnets repel each other.

3. Like poles of magnets repel each other.

4. A cylindrical magnet has only one pole.

Q.

A magnet always has __________ poles.

1. 4

2. 1

3. 2

4. No poles

Q. Magnetic strength of a magnet is equally distributed over its body.

1. False
2. True

Q.

In a bar magnet, strength of the north pole is _______ the strength of the south pole.

1. less than

2. greater than

3. twice

4. equal to

Q.

Poles of a bar magnet is located _________.

1. at the middle of the magnet

2. at two extreme ends of the magnet

3. at one of the end, together

4. outside the bar magnet

Q. A freely suspended magnet aligns in ________ direction.

1. North-East
2. East-West
3. North-South
4. South-West

Q. Ganeshan set up an experiment using two bar magnets one of which is marked N (North pole) and S (South pole) as shown in the figure. He noticed that the upper magnet is lifted up in air.

Identify X and Y poles of the upper magnet.

1. X is the north pole, Y is the south pole
2. X is the south pole, Y is the north pole
3. Both X and Y are north poles
4. Both X and Y are south poles

Q.

It is impossible to obtain a magnet having only one magnetic pole.

1. True

2. False

Q. When a magnet is placed near a rectangular bar, the bar moved away. What can be concluded about the bar?

1. It is a magnet.
2. It is made up of aluminium.
3. It is made up of iron.
4. It is not a magnet.

Q. _________ is the surest test of detecting magnets.

1. Electric flux
2. Electrolysis
3. Magnetism
4. Galvanisation