Faraday's Laws of Electromagnetic Induction

In 1832, An English scientist Michael Faraday invented and published a law called Faraday's laws of electromagnetic induction. Faraday's law explains that how a magnetic field will interact with an electric circuit to produce electromotive force. Faraday's law of electromagnetic induction is the basic working pronciple of the most of the electrical generators, motors, transformers etc.

Faraday's First law

Whenever a current carrying conductor is placed in a varying magnetic field an electromotive force gets induced across the conductor. If the conductor is a closed circuit then induced current flows through it. Magnetic field can be varied by any one of the method

• By rotating the coil.
• By rotating the magnet.
• By rotating the coil relative to magnetic field.

Faraday's Second law

Faraday's Second law of electromagnetic induction states that, the magnitude of induced emf will always equal to the rate of change of flux linkages with the coil. The flux linkages is the product of number of turns and the flux associated with the coil.