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प्रश्न
A magnet has _______ magnetic poles.
रिक्त स्थान भरें
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उत्तर
A magnet has two magnetic poles.
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Classification of Magnets
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संबंधित प्रश्न
Match the following:
| 1. | Natural magnets | a. | Levitating propeller |
| 2. | Artificial magnets | b. | Wooden spoon |
| 3. | Magnetic substance | c. | Heating |
| 4. | Nonmagnetic substance | d. | Bar magnet |
| 5. | Demagnetization | e. | Pin holders |
| 6. | Electromagnetic train | f. | Magnetite |
Analogy:
Natural magnet: Magnetic stones.
Artificial magnet: ______.
Give the different shapes of Artificial magnets.
______ is the ore with attracting property.
What are the different types of artificial magnets?
______ is the ore of iron which is the strongest natural magnet.
What is the other name of lodestone?
A bar magnet is cut into two pieces A and B, from the middle, as shown in the following figure.
Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an activity to verify your answer.
What are natural magnets?
Permanent magnets are made of hard magnetic materials like alnico.
