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प्रश्न
Fill the blank spaces in the table given below:
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | ________ |
| ________ | attracted | attracted |
| North pole of a bar magnet | ________ | _________ |
| ________ | attracted | repelled |
तक्ता
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उत्तर
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | No action |
| Soft iron rod | attracted | attracted |
| North pole of a bar magnet | repelled | attracted |
| South pole of a bar magnet | attracted | repelled |
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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 |
How are the magnets kept safely? What is the role of keepers in storing the magnets?
How will you do this?
Find the north pole of a magnet.
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
Distinguish between the two methods of making artificial magnets.
Draw the magnetic flux pattern near a bar magnet placed with its axis in the magnetic meridian and the south pole pointing towards geographic north.
What is a natural magnet? State three properties of a magnet.
Write a short note on lighting conductors.
Match the following.
| Magnetite | Magnetic lines |
| A tiny pivoted magnet | Natural magnet |
| Cobalt | Compass box |
| Closed curves | Ferromagnetic material |
| Bismuth | Diamagnetic material |
Which is not attracted by a magnet?
