What is Transformer and working?

Question

Accepted Answer

A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.

Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.
They work on the principle of electromagnetic induction, where a changing magnetic field induces a voltage in a coil of wire.
Transformers consist of two coils of wire, called the primary and secondary coils, wrapped around a magnetic core.
When an AC voltage is applied to the primary coil, it creates a changing magnetic field that induces a voltage in the secondary coil.
The voltage in the secondary coil is proportional to the ratio of the number of turns in the secondary coil to the number of turns in the primary coil.
Transformers are used in power distribution systems, electronic devices, and many other applications.
Examples of transformers include step-up transformers, step-down transformers, isolation transformers, and autotransformers.

Popular interview questions of Electrical Project Engineer