What is the symbol used to represent a transformer?

The correct representation of a transformer in electrical schematics is commonly depicted as two interconnecting circles. This symbol captures the essential nature of a transformer, which consists of two coils (windings) linked together by a magnetic field, allowing for the transformation of voltage levels through electromagnetic induction. Each circle corresponds to one of the windings, illustrating how they are coupled together within the transformer assembly.

The use of circles in this context emphasizes the magnetic coupling that is intrinsic to the operation of transformers, making it visually intuitive for those familiar with electrical components. Understanding this symbol is fundamental for interpreting electrical diagrams and for working with transformers in practical applications.