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प्रश्न
A student who checked some magnets in the school laboratory found out that their magnetic force is worn out. Give three reasons for that?
उत्तर
Magnets lose their properties if they are:
- heated
- dropped from a height
- hit with a hammer
These are the reasons for that their magnetic force is worn out.
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संबंधित प्रश्न
Write true or false of the following statement.
Poles of a magnet cannot be separated.
How can magnetic properties of a magnet be destroyed?
Explain the attractive property of a magnet with the help of an experiment.
Give a reason for the following.
Magnets are used to close the doors of a refrigerator tightly.
It is said that repulsion is a sure test for magnetism. Why is it so?
You are given two rods. Out of these, one is an iron rod and the other one is magnet, how will you identify these rods?
A freely suspended magnet always comes to rest in the ______ direction
Magnets lose their property if they ______.
Magnets lose their properties if they are dropped from a height.
Match Column I with Column II (One option of A can match with more than one option of B)
| Column 1 | Column II | ||
| (a) | Magnet attracts | (i) | rests along a particular direction |
| (b) | Magnet can be repelled | (ii) | iron |
| (c) | Magnet if suspended freely | (iii) | another magnet |
| (d) | Poles of the magnet can be identified by | (iv) | iron filings |
