Physics - Faraday's Law of Electro - Magnetic Introduction
Faraday's Law of Electro - Magnetic Introduction
The induced e. m. f is directly proportional the rate of change of magnetic flux that is
Where is the flux linkage for one turn.
If the coil contains N turns an e. m. f appears in every turn and all these e. m. f's to be added.
If the coil has N turrns then,
Negative Sign indicates that the induced emf opposes any change according to Lenz's law .
It is also called as Neumann's las