MasteryExams
General Science • PhysicsEasy

Which law or principle establishes that the magnitude of the induced EMF is directly proportional to the rate of change of magnetic flux?

A. Lenz's law
B. Faraday's law of induction✓ Correct Answer
C. Ampere's law
D. Biot-Savart law

💡 Solution & Explanation

Faraday's law of electromagnetic induction states that the magnitude of the electromotive force induced in a closed circuit is directly proportional to the time rate of change of magnetic flux linking the circuit. Lenz's law complements this by determining the directional polarity of the induced current to oppose the flux change. This principle forms the foundational operating mechanism for electrical generators and transformers.

🚩 Report a problem