What is a common application of an electrical transformer?

A common application of an electrical transformer is to increase or decrease voltage levels. Transformers operate on the principle of electromagnetic induction, allowing them to change the voltage of alternating current (AC) signals while keeping the power (minus losses) consistent. This capability is essential for efficiently transmitting electricity over long distances. By stepping up the voltage at generation stations, less energy is lost in transmission due to resistance in the wires. Then, at the consumption end, transformers can step down the voltage to safe levels suitable for use in homes and businesses. This voltage regulation is critical for the reliability of power systems, making it one of the primary functions of transformers in electrical engineering.