how electric power transformers work?

Electric power transformers work by transferring electrical energy between two or more circuits through electromagnetic induction. They consist of primary and secondary windings wrapped around a magnetic core. When alternating current flows through the primary winding, it creates a magnetic field that induces a voltage in the secondary winding. This process allows transformers to either step up (increase) or step down (decrease) voltage levels, facilitating efficient power distribution across long distances in electrical grids.