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प्रश्न
Answer the following.
Why is it not possible to isolate a single magnetic pole?
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उत्तर
Magnetic poles always exist in pairs and cannot exist independently. If a bar magnet is broken into two or more pieces, each of them will have a north pole and a Southpole. Hence, it is impossible to obtain a piece of the magnet with only one magnetic pole.
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संबंधित प्रश्न
Write true or false of the following statement.
Magnetic poles occur in pairs.
State four important properties of a bar magnet?
State three important uses of a magnet.
What is the magnetic induction? Explain with the help of a diagram.
Answer the following in detail.
How can a magnet be demagnetized?
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
Describe, how you will proceed to determine the position of the pole of a bar magnet.
Give scientific reason:
Soft iron is used to make electromagnets.
Define artificial magnet.
