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प्रश्न
Give a reason for the following.
Iron is a magnetic substance.
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उत्तर
Iron is a magnetic substance because it gets attracted by a magnet.
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संबंधित प्रश्न
What is declination ? Draw a diagram to show the angle between the declination and true direction of geographic north.
Write true or false of the following statement.
Magnetic poles occur in pairs.
Answer the following in short.
If a bar magnet is placed over iron filings, where will the attraction of the iron fillings be
- maximum?
- minimum?
Differentiate between:
Primary and secondary cell.
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
One of the following is an example for a permanent magnet.
Match the following.
| Magnetite | Magnetic lines |
| A tiny pivoted magnet | Natural magnet |
| Cobalt | Compass box |
| Closed curves | Ferromagnetic material |
| Bismuth | Diamagnetic material |
What are the factors that determine the strength of the magnet?
Give the uses of magnets in everyday life.
