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प्रश्न
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
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उत्तर
No, because like poles repel each other when two magnetic are brought close to each other.
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संबंधित प्रश्न
Explain the meaning of the term magnetic field ?
State if the following statement is true or false. Correct the statement if it is false.
Attraction is the surest test for magnetism.
Define the following term regarding a bar magnet:
Effective length
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
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 |
Define the following term:
Angle of declination
Match the following.
| Magnetite | Magnetic lines |
| A tiny pivoted magnet | Natural magnet |
| Cobalt | Compass box |
| Closed curves | Ferromagnetic material |
| Bismuth | Diamagnetic material |
How can you identify non-magnetic materials? Give an example of a nonmagnetic material.
Why it is not advisable to slide a magnet on an iron bar back and forth during magnetising it?
Define artificial magnet.
