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प्रश्न
Name a common device that uses electromagnets.
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उत्तर
Electromagnets are used in electric bell, door alarm, motor, dynamo etc.
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संबंधित प्रश्न
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The following diagram shows a fixed coil of several turns connected to a center zero galvanometer G and a magnet NS which can move in the direction shown in the diagram.
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- The magnet is then rapidly pulled out the coil.
- How would the observation in (i) of part (a) change if a more powerful magnet is used?
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