If a closed metallic loop is moved across a magnetic field then:
Correct answer: A. Induced current is produced in it
- A. Induced current is produced in it
- B. No induced current is produced
- C. Magnet will attract the loop
- D. None of above
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About Electromagnetic Induction
Changing magnetic flux induces an emf according to Faraday's law, while Lenz's law gives the direction that opposes the change producing it. Transformers apply induction between coils to step alternating voltage up or down, with turns ratio, current transformation and energy losses determining practical operation.
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The magnitude of motional emf is given by:
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The Phenomenon by which an induced emf is produced in the conductor due to change of magnetic flux in it is called:
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An emf is set up in a conductor when it: