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प्रश्न
What is an artificial magnet? Why do we need artificial magnets?
टीपा लिहा
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उत्तर
Artificial magnets are the magnets which are formed by bringing the natural magnet near it The artificial magnets have high retentivity means they remain magnetized for a long period of time and that is why they are used for making strong electromagnets.
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संबंधित प्रश्न
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| Column A | Column B |
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| D) Magnetic keepers | 4) electromagnet |
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