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प्रश्न
The real test of a magnet is ______.
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उत्तर
The real test of a magnet is repulsion.
Explanation:
An object cannot be considered a magnet just because it shows attraction, because even non-magnetic materials can be attracted. However, if an object repels another magnet, then and only then, it is a true magnet.
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 |
How will you test whether a given rod is made of iron or not?
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
When magnetic material is taken close to a magnet, the material acquires ______.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Mark on the diagram the poles of the second magnet,
If a magnet is carefully broken into two pieces as shown in figure (i), how does the magnetic strength of each piece compare with that of the original magnet? If another magnet is carefully broken in half along its long axis shown in figure (ii), how would the strength of each piece compare with that of the original magnet?
Define the following term:
Angle of declination
Give scientific reason:
Not attraction but repulsion is a sure test of magnetism.
