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प्रश्न
Three identical iron bars are kept on a table. Two out of three bars are magnets. In one of the magnet the North-South poles are marked. How will you find out which of the other two bars is a magnet? Identify the poles of this magnet.
उत्तर
Take the magnet that has the North and South poles marked on it. Keep both iron bars next to it, and both will be drawn to it since they are magnetic. So, one after the other, test each of the two magnet bars for repulsion. If the first magnet bar you grabbed repels the specified magnet bar, this will be the second one. Magnets both attract and repel, whereas iron attracts.
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संबंधित प्रश्न
In which direction does a suspended magnet come to rest?
A magnet always has ______ poles.
A cylindrical magnet has only one pole.
Similar poles of a magnet repel each other.
Match the following
| 1. | Compass | Maximum magnetic strength |
| 2. | Attraction | Like poles |
| 3. | Repulsion | Opposite poles |
| 4. | Magnetic poles | Magnetic needle |
When the N pole of bar magnet is moved closer to the north pole of a magnet it will ______.
Analogy:
Repel to each other: Like poles.
Attract to each other: ______.
North pole of a magnet can be identified by
A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filling clinging to the
When a bar magnet is broken; each of the broken parts will have ______ pole/poles.
