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प्रश्न
Draw diagrams of the artificial magnets of four different shapes?
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उत्तर
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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.
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 |
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Effective length
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| 2. | Force on the conductor | b. | Hans Christian Oersted |
| 3. | Electric bell | c. | I LB |
| 4. | Ns <Np | d. | Electromagnet |
