In a transformer, what happens to voltage induced in the secondary winding?

The voltage induced in the secondary winding of a transformer primarily depends on the turns ratio between the primary and secondary coils. This relationship is governed by Faraday's Law of Electromagnetic Induction, which states that the induced voltage in a coil is proportional to the rate of change of magnetic flux linked with the coil.

In a transformer, if you increase the number of turns in the secondary winding relative to the primary winding, the voltage in the secondary winding increases proportionally. This is known as a step-up transformer. Conversely, if the secondary winding has fewer turns than the primary, the induced voltage in the secondary will be lower, characteristic of a step-down transformer.

The turns ratio directly influences how voltage is transformed between the primary and secondary windings, making it the fundamental principle determining the voltage induced in the secondary. Thus, understanding this dependency on the turns ratio is essential for analyzing transformer behavior and operation in electrical systems.