Advertisements
Advertisements
प्रश्न
State three important uses of a magnet.
थोडक्यात उत्तर
Advertisements
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.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
“Poles exist in pair”. Comment on this statement ?
Write true or false of the following statement.
Magnetic poles occur in pairs.
Define the following term regarding a bar magnet:
Magnetic equator
How will you do this?
Explain that a magnet has a certain magnetic field.
When magnetic material is taken close to a magnet, the material acquires ______.
Explain the mechanism by which unmagnetized iron nails get attracted to a magnet when brought near it.
Distinguish between
Natural and artificial magnets.
One of the following is an example for a permanent magnet.
The south pole of a bar magnet and the north pole of a U-shaped magnet will _______.
Match the following:
| 1. | Electricity and magnetism | a. | Step-down transformer |
| 2. | Force on the conductor | b. | Hans Christian Oersted |
| 3. | Electric bell | c. | I LB |
| 4. | Ns <Np | d. | Electromagnet |
