What is the main function of a transformer in an electrical power system?

Explanation

A transformer changes the voltage level of alternating current, either stepping it up for long-distance transmission or stepping it down for safe household use. It works using electromagnetic induction between two coils of wire wrapped around a shared core. Power stations use step-up transformers to reduce energy loss over transmission lines, while step-down transformers near homes lower the voltage to usable levels. Explore more Everyday Science MCQs on mcqstutor to keep practicing.