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प्रश्न
How will you do this?
Find the north pole of a magnet.
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उत्तर
- Tie a thread to the centre of the magnet and hang it freely from a stand.
- Wait for the magnet to settle. As it hangs, it will align itself along the Earth's magnetic field in a north-south direction.
- The end of the magnet that points towards the geographic north will be the south pole of the magnet (since opposite poles attract).
Therefore, the other end, which points toward the geographic south, will be the north pole of the magnet.
संबंधित प्रश्न
Match the following
| Column A | Column B |
| A) Steel | 1) to store magnets |
| B) Soft iron | 2) temporary magnet |
| C) Use in electric bell | 3) permanent magnet |
| D) Magnetic keepers | 4) electromagnet |
What is the magnetic induction? Explain with the help of a diagram.
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Name the metal used for E and F.
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?
Give scientific reason:
Two steel needles hanging from the lower end of a vertical bar magnet do not hang vertically.
People who made mariner’s compass for the first time.
The pole of a freely suspended magnet that points towards the north is called the south pole and what points towards the south is the celled north pole.
