Magnetic Poles Exist in Pairs

Q.

If a magnet is cut into two parts transverse to its length , then the magnetic pole strength of each magnet is__________ the magnetic pole strength of the original magnet.

1. more than
2. less than
3. twice
4. same as

Q.

If a bar magnet is cut lengthwise into two parts, how many poles will be formed?

1. 6

2. 5

3. 4

4. 2

Q. Permanent magnets are made up of:

Q. is a bar magnet more powerful than a natural magnet. justify

Q.

If the above bar magnet is broken along the middle line, then how many north poles and south poles will be formed?

1. 2 north, 2 south

2. 1 north, 1 south

3. 2 north, 1 south

4. 1 north, 2 south

Q. There can be a case where a bar magnet can have only one pole.

1. True
2. False

Q.

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

1. greater than

2. less than

3. equal to

4. twice

Q. When a bar magnet is broken into two pieces, then:

1. Each piece will have a single pole.
2. Each piece will have two unlike poles.
3. Each piece will have two like poles.
4. The pieces stop behaving as magnet.

Q. A magnet has ____ poles.

1. three
2. four
3. two
4. six

Q.

Poles of a bar magnet is located _________.

1. at the middle of the magnet

2. at one of the end, together

3. at two extreme ends of the magnet

4. outside the bar magnet

Q. A bar magnet was cut into two pieces initially; Again, each of these new pieces was cut into two more pieces, and this process was repeated once more. Then, ___ is the number of north poles.

1. 1
2. 8
3. 16
4. 4

Q. If a magnet is carefully broken in half along its long axis, as shown in Fig. how would the magnetic strength of each piece compare with that of the original magnet?

1. 1 : 2
2. 1 : 4
3. 2 : 1
4. 1 : 1