How does a Transformer work ? : Animation

Transformer, a device that transfers electric energy from one circuit to another, usually with a change in voltage. Transformers work only with a varying electric current, such as alternating current (AC). Transformers are important in the distribution of electric power.
This video gives a detailed animated illustration on the working of electricTransformers. Here the basic working principle and construction of transformer, step-up transformer, step-down transformer, transformer winding and core construction are well illustrated.
Source: Learn Engineering (Youtube)