The induced emf in a coil is proportional to:
Correct answer: B. Rate of change of magnetic flux through the coil
- A. Magnetic flux through the coil
- B. Rate of change of magnetic flux through the coil
- C. Area of the coil
- D. Product of magnetic flux and area of the coil
Explanation
Among the options given, the correct answer is A) Rate of change of magnetic flux through the coil. This change induces an electromotive force in the coil according to Faraday's law of electromagnetic induction.
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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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