Understanding the Structure and Action of Transformers

The video tutorial explains the structure and function of transformers, devices that modify the potential difference of alternating current. It covers two types: step-up transformers, which increase voltage, and step-down transformers, which decrease it. The structure of transformers includes two coils around an iron core, facilitating electromagnetic induction. The video highlights that transformers only work with AC, as DC does not induce a potential difference. Finally, it discusses energy transfer between electrically isolated circuits.

What is the primary function of a transformer?

Explain the difference between a step-up transformer and a step-down transformer.

Describe the structure of a transformer.

How does electromagnetic induction occur in a transformer?

Why do transformers only work with alternating current (AC) supply?