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प्रश्न
You are given a magnet. How will you use it to find north-south direction at a place?
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उत्तर
To find the north-south direction with a magnet:
- Float a bar magnet or magnetized needle on water using a leaf or cork.
- Let it settle; it will align with Earth's magnetic field.
- One end points north, the other south.
Verify using sunrise (east) and sunset (west). Now you have found the north-south direction at that place!
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संबंधित प्रश्न
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Answer the following in detail.
Write a short note on the theory of magnetism.
If a magnet attracts a piece of metal, that piece must be made of ______.
A magnet remains steady in a ________ direction.
Select the correct option:
The place around a magnet where its influence can be detected is called:
Draw the magnetic field lines around a bar magnet when a bar magnet is placed such that the N pole points North.
Differentiate between:
Primary and secondary cell.
MRI stands for _______.
Match the following.
| Magnetite | Magnetic lines |
| A tiny pivoted magnet | Natural magnet |
| Cobalt | Compass box |
| Closed curves | Ferromagnetic material |
| Bismuth | Diamagnetic material |
The strongest natural magnet is ______.
