what you know about transformer ?

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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, known as the primary and secondary coils, which are wrapped around a magnetic core.
When an AC voltage is applied to 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 various industrial applications.
Examples of transformers include step-up transformers, step-down transformers, isolation transformers, and autotransformers.

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