Transformer:
A transformer converts high voltage low currents into low voltage high currents and vice-versa.
Transformer works only for AC.
Principle:
A transformer works on the principle of mutual inductance between two coils linked by a
common magnetic flux.
Construction:
A transformer consists of two mutually coupled insulated coils of wire wound on a continuous
iron core. One of the coils is called primary coil and the other is called secondary coil. The
primary is connected to an AC emf. And secondary to a load. Due to this alternating flux
linkage, an emf. Is induced in the secondary due to mutual induction.
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