Transformer

Transformer consists of two electrically isolated coils and operates on Faraday's principal of “mutual induction”, in which an EMF is induced in the

transformers secondary coil by the magnetic flux generated by the voltages and currents flowing in the primary coil winding.

Transformer Action

transformer basically consists of two coils wound around a common soft iron core. When an alternating voltage ( VP ) is applied to the primary coil,

current flows through the coil which in turn sets up a magnetic field around itself, called mutual inductance,by this current flow according to Faraday’s

Law of electromagnetic induction.

The strength of the magnetic field builds up as the current flow rises from zero to its maximum value which is given as dΦ/dt.