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प्रश्न
Give a reason for the following.
Magnets are used to close the doors of a refrigerator tightly.
उत्तर
Because of the attractive property of a magnet. A magnet attracts magnetic substances by exerting a force called magnetic force. , This keeps the door of a refrigerator closed tightly.
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संबंधित प्रश्न
Write true or false for a given statement.
A coil carrying current behaves like a magnet.
Write true or false of the following statement.
Poles of a magnet cannot be separated.
Write true or false of the following statement.
A magnet has no effect when it is heated to a high temperature.
Fill in the blank.
In a magnet, ............ have the maximum attractive property.
How is an artificial magnet prepared from a natural magnet?
A student who checked some magnets in the school laboratory found out that their magnetic force is worn out. Give three reasons for that?
Write any two properties of a magnet.
Magnets lose their property if they ______.
Match the following:
| 1. | Directive property | a. | Never intersect |
| 2. | Magnetic poles | b. | Magnetic compass |
| 3. | Lines of force | c. | Attract |
| 4. | Unlike poles | d. | Exist in pairs |
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 |
