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प्रश्न
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
एक पंक्ति में उत्तर
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उत्तर
Permanent magnet can be used to stop the continuous shuttering of the window in the wind.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Describe a simple experiment to illustrate that like poles of two magnets repel each other while the unlike poles attract ?
What is the magnetic induction? Explain with the help of a diagram.
How will you do this?
Explain that a magnet has a certain magnetic field.
The figure shows a freely suspended magnet in the rest position. Copy the diagram and on its show:
- Angle of declination
- Angle in dip
What do you understand by the term magnetic declination?
What is a natural magnet? State three properties of a magnet.
What is an artificial magnet? Why do we need artificial magnets?
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
Define artificial magnet.
