The motional emf depends upon
Correct answer: D. all of these
- A. strength of the magnet
- B. length of the conductor
- C. speed of the conductor
- D. all of these
Explanation
D is the correct answer The motional electromotive force (emf) induced in a conductor moving in a magnetic field depends on the strength of the magnet, the length of the conductor, and the speed of the conductor. The formula for motional emf is given by ε=B⋅l⋅v, where B is the magnetic field strength, l is the length of the conductor, and v is the speed of the conductor.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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