Electromagnetic induction and Lenz's law

What is Electromagnetic induction and Lenz's law?

An e.m.f. is induced whenever the magnetic flux through a conductor or coil changes, for example when a magnet and a coil move relative to one another; Lenz's law states that the current produced by an induced e.m.f. opposes the change producing it.

This definition is part of the Electricity and Magnetism chapter in Cambridge O Level Physics.

Concepts related to Electromagnetic induction and Lenz's law

• cutting field lines
• rate of change
• a.c. generator
• transformer