On what principle does a transformer work?

Question

Accepted Answer

A transformer works on the principle of electromagnetic induction.

A transformer consists of two coils, a primary coil and a secondary coil.
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.
The ratio of the number of turns in the primary and secondary coils determines the voltage transformation.
Transformers are used to step up or step down voltages in electrical systems.
Example: A step-down transformer in a power distribution system reduces high voltage from power lines to a lower voltage suitable for household use.

Accepted Answer

Transformer works on Faraday's law of mutual induction. Faraday's law of electromagnetic induction states that, when a change takes place in the magnetic flux which is linked with a circuit, an electromotive force current will induce in the circuit.

On what principle does a transformer work?

Top Tata Motors Electrician Maintenance Technician interview questions & answers

Popular interview questions of Electrician Maintenance Technician