The emf induced in a conductor of unit length moving with unit velocity at right angles to a magnetic field is equal to_____________?
Correct answer: A. Magnetic flux density
- A. Magnetic flux density
- B. Torque
- C. Mutual induction
- D. Motional emf
Explanation
The motional emf is e = Blv when the conductor, velocity, and magnetic field are mutually perpendicular. With unit length and unit velocity, e equals B, the magnetic flux density.
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