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प्रश्न
A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole located?
उत्तर
A freely suspended bar magnet always comes to rest in the North−South direction. The north-facing end of the magnet is its north pole, and the south-facing end is its south pole (as shown in the given figure).
Hence, the unknown poles of a bar magnet can be marked by suspending it freely by a string.
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संबंधित प्रश्न
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?
poles repel to each other.
- N – N
- N – S
- S – N
- S – S
When the N pole of bar magnet is moved closer to the north pole of a magnet it will ______.
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 ______.
A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filling clinging to the
