What is transformer? Explain its principle, construction and working. Give the uses of transformer.
Answers
Answer:
A 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.
WORKING PRINCIPLE:
Transformer works on the principle of Mutual induction between two windings (Primary and secondary) linked by common magnetic flux. When source of alternating voltage is connected to the Primary coil the magnetic flux produced in primary induces flux in secondary coil too. The frequency remain same.
Construction:-
it consist of two inductive winding and a steel core which is laminated. The core is constructed by stacking sheets of steel with minimum air gap between the two. The steel is used because of its high permeability and low hysteresis loss. The stacking must of alternating sides of joint.
Answer:
The basic principle behind working of a transformer is the phenomenon of mutual induction between two windings linked by common magnetic flux. ... Basically a transformer consists of two inductive coils; primary winding and secondary winding. The coils are electrically separated but magnetically linked to each other