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प्रश्न
How will you test whether a given rod is made of iron or not?
उत्तर
Bring a magnet near the rod if the rod is attracted by the magnet then it will be made of iron else not.
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संबंधित प्रश्न
How will you do this?
Explain that a magnet has a certain magnetic field.
Describe, how you will proceed to determine the position of the pole of a bar magnet.
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
What is a natural magnet?
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.
What are the factors that determine the strength of the magnet?
The magnetic poles always exist in pairs.
Define the terms magnet and magnetism.
