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प्रश्न
Draw the magnetic field lines around a bar magnet when a bar magnet is placed such that the N pole points North.
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उत्तर
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संबंधित प्रश्न
How are the magnets kept safely? What is the role of keepers in storing the magnets?
Answer the following in detail.
How can a magnet be demagnetized?
Define the following term regarding a bar magnet:
Effective length
The real test of a magnet is ______.
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?
The figure shows a freely suspended magnet in the rest position. Copy the diagram and on its show:
- Angle of declination
- Angle in dip
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.
Which is not attracted by a magnet?
Define natural magnet.
