8.3.4 Faraday’s Law

There are 2 principal laws of electromagnetic induction:

1. The Faraday’s law
2. The Lenz’s law

Faraday's Law

1. The magnitude of the induced e.m.f is determined from Faraday's Law.
2. Faraday's Law states that the magnitude of the induced e.m.f is directly proportional to the rate of change of magnetic flux through a coil or alternatively the rate of the magnetic flux being cut.
3. Therefore, the induced emf can be increased by
   1. using a stronger magnet
   2. increase the speed of the relative motion
   3. increase the number of turns of the coil