Faradays law of electromagnetic induction

 

When the magnetic flux linking a conductor or coil changes an EMF is induced in the conductor. If the conductor or coil forms a complete loop a current will flow in it. This phenomenon is called Electromagnetic induction.

First law:-

When the magnetic flux linking a conductor or coil changes an EMF induced is in it.

Second law:-

The magnitude of EMF induced in a conductor or coil is directly proportional to the rate of flux linkages.

        Mathematically

                   E=-N (d phi/dt)       where,

                                                N=no. of turns

                                                            (d phi/ dt)=rate of change of flux linkage

The minus sign on the RHS represents lenz’s law state that the induced current will flow in such a direction so as to oppose the cause that produces it.