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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
State Fleming’s right-hand rule.
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State the factors on which the strength of an electromagnet depends. How does it depend on these factors?
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In which of the following case does the electromagnetic induction occur?
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Give an illustration of determining direction of induced current by using Lenz’s law.
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