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प्रश्न
State three important uses of a magnet.
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उत्तर
Use of magnet:
- Magnets are used in magnetic compass, doorbells, refrigerators.
- Magnets are used in dynamos, motors, loudspeakers, microphones, etc.
- Ceramic magnets are used in computers.
- Magnets are used in toys to give magic effects.
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संबंधित प्रश्न
You are given a magnet. How will you use it to find north-south direction at a place?
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Answer the following in detail.
List four methods of magnetizing a magnetic substance.
A magnet remains steady in a ________ direction.
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Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
Explain the following:
Resistance of a conductor
Match the following.
| Magnetite | Magnetic lines |
| A tiny pivoted magnet | Natural magnet |
| Cobalt | Compass box |
| Closed curves | Ferromagnetic material |
| Bismuth | Diamagnetic material |
