The emf induced in a circuit according to Faraday's law depends on the:
Correct answer: D. The rate of change of magnetic flux
- A. Maximum magnetic flux
- B. Initial magnetic flux
- C. Change in magnetic flux
- D. The rate of change of magnetic flux
Explanation
According to Faraday's laws of electromagnetic induction, induced emf in a coil depends upon the number of turns and the rate of change of flux linking the coil. The larger the rate of change of current, the greater is emf induced in the coil.
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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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