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Electromagnetic TheoryMotional EMF

Motional emf in a straight conductor of length l moving with speed v perpendicular to a uniform magnetic field B is?

  • ABlv
  • BB/(lv)
  • Clv/B
  • DB²lv
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Correct Answer: A. Blv
Explanation: For mutually perpendicular B, conductor length and velocity, the motional emf magnitude is e=Blv.
Reference: Standard electromagnetic theory: motional emf
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