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प्रश्न
Observe the pictures A and B given in figure carefully.
Which of the following statement is correct for the above given pictures?
विकल्प
In A, cars 1 and 2 will come closer and in B, cars 3 and 4 will come closer.
In A, cars 1 and 2 will move away from each other and in B, cars 3 and 4 will move away.
In A, cars 1 and 2 will move away and in B, 3 and 4 will come closer to each other.
In A, cars 1 and 2 will come closer to each other and in B, 3 and 4 will move away from each other.
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उत्तर
In A, cars 1 and 2 will come closer to each other, and in B, 3 and 4 will move away from each other.
Explanation:
If the magnets on vehicles 1 and 2 are facing each other with opposite poles, the cars will be attracted. If the magnets on cars 1 and 2 are facing each other with the same poles, the cars will repel each other. In scenario B, the magnets on vehicles 3 and 4 will repel each other because they have the same pole.
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संबंधित प्रश्न
“Poles exist in pair”. Comment on this statement ?
What is a magnet?
Fill the blank spaces in the table given below:
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | ________ |
| ________ | attracted | attracted |
| North pole of a bar magnet | ________ | _________ |
| ________ | attracted | repelled |
There are two knitting needles. One of them is magnetized. How will you find out which one is magnetized, if no other magnet is available?
Describe, how you will proceed to determine the position of the pole of a bar magnet.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
What do you understand by the term magnetic declination?
Define the term Effective length of a magnet
Distinguish between
Natural and artificial magnets.
The magnetic poles always exist in pairs.
