Lenz’s law of electromagnetic induction states... | WAEC SSCE - Physics - 1992 (Objective)

Question 1 Report

Lenz’s law of electromagnetic induction states that

electromotive force is induced in a circuit whenever there is a change in the magnetic flux linked with the circuit

the induced current in a conductor is in such a direction as to oppose the change producing it

the induced e.m.f. in a circuit is proportional to the rate of change of number of lines of force linking the circuit

a force is exerted on a current carrying conductor in a magnetic field

the induced e.m.f. is proportional to the current producing the magnetic flux.

Answer Details

Lenz’s law of electromagnetic induction states that "the induced current in a conductor is in such a direction as to oppose the change producing it". This means that when a magnetic field is changing near a conductor, an electromotive force (EMF) is induced in the conductor, which in turn generates a current. This induced current will always flow in a direction that creates a magnetic field that opposes the change in the original magnetic field. In simple terms, the law states that nature always tries to resist any change in the magnetic field through a conductor.

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Electric Field

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Lenz’s law of electromagnetic induction states that

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