What is the working principle of transformers?

Question

Accepted Answer

Transformers work on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.

Transformers have two coils of wire, known as primary and secondary coils.
When an alternating current flows through the primary coil, it creates a changing magnetic field.
This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy.
The ratio of the number of turns in the primary and secondary coils determines the voltage transformation.
Transformers are used in power distribution, voltage regulation, and electrical isolation.
Example: Step-up transformer increases voltage for long-distance power transmission.
Example: Step-down transformer decreases voltage for household appliances.

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