As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it_______________?
Correct answer: C. cuts magnetic flux
- A. lies perpendicular to the magnetic flux
- B. lies in a magnetic field
- C. cuts magnetic flux
- D. moves parallel to the direction of the magnetic field
Explanation
Faraday's law requires a change in flux linkage, which occurs when a conductor cuts magnetic flux or the flux itself changes. Merely lying in a magnetic field does not induce emf, and motion parallel to the field does not cut flux.
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