What is Transformers

Question

Accepted Answer

Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.

Transformers are used to increase or decrease the voltage of an alternating current (AC) electrical supply.
They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.
The primary winding receives electrical energy from the input circuit and produces a magnetic field.
This magnetic field induces a voltage in the secondary winding, which is connected to the output circuit.
Transformers are commonly used in power distribution systems to step up the voltage for long-distance transmission and step it down for consumer use.
They are also used in electronic devices like chargers and adapters to convert voltage levels.
Examples of transformers include power transformers, distribution transformers, and isolation transformers.

Top Cognos Infra Maintenance Engineer interview questions & answers