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प्रश्न
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
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उत्तर
Permanent magnet can be used to stop the continuous shuttering of the window in the wind.
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 |
Define the following term regarding a bar magnet:
Magnetic field
If a bar magnet is cut into equal pieces by cutting it at right angles to its axis at two places, ______ bar magnets are formed, and a total of _____ poles are formed.
A magnet remains steady in a ________ direction.
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic south.
Magnets are used in _______ for generating electricity.
Observe the pictures A and B given in figure carefully.
Which of the following statement is correct for the above given pictures?
You are provided with two identical metal bars. One out of the two is a magnet. Suggest two ways to identify the magnet.
