What is a transformer

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 consist of two coils of wire, called the primary and secondary coils, wrapped around a magnetic core.
When an AC current flows through the primary coil, it creates a magnetic field that induces a voltage in the secondary 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.

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