The two coil windings of a transformer are ________

Question

Question

This question was previously asked in

RRB ALP Electronics Mechanic 23 Jan 2019 Official Paper (Shift 3)

Answer 1

In the transformer, two windings are electrically isolated but magnetically coupled. Hence the transformer is a coupled circuit.

Transformer:

A transformer is a static device that transfers power from one circuit to another circuit without a change in the frequency.
Generally, the winding which is connected to the supply is called primary winding, and the winding on which load connected is called as secondary winding.
The transformer is a singly excited device since it requires only one external voltage source to energize any number of windings placed on its core.
The transformer can be treated as a phase-shifting device since it offers a displacement of approx 1800 between two circuits.
As the amount of flux in the transformer core is constant irrespective of power transfer, it can be treated as a "Constant flux device".
The transformer is a negative feedback circuit because it satisfies 'Lenz's law'.