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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.
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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.
Match the following
| 1. | Compass | Maximum magnetic strength |
| 2. | Attraction | Like poles |
| 3. | Repulsion | Opposite poles |
| 4. | Magnetic poles | Magnetic needle |
You are provided with iron filings and a bar magnet without labelling the poles of the magnet. Using this...
- How will you identify the poles of the magnet?
- Which part of the bar magnet attracts more iron filings? Why?
Where are poles of a bar magnet located?
A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole located?
The end of the magnet that points to the north is called south pole.
Analogy:
Repel to each other: Like poles.
Attract to each other: ______.
The attractive force of magnet is high near ______.
