How are the primary and secondary windings of a transformer coupled?

The primary and secondary windings of a transformer are coupled magnetically. In a transformer, when an alternating current flows through the primary winding, it creates a magnetic field that induces a voltage in the secondary winding through the principle of electromagnetic induction. This magnetic coupling is essential for the transformer to step up or step down voltages between the primary and secondary sides.

While electrical coupling and inductive coupling are terms related to electrical engineering, they do not specifically describe the mechanism used in transformers. Capacitive coupling involves the transfer of energy through an electric field and is not applicable in the context of transformers. In contrast, magnetic coupling specifically refers to the use of a magnetic field to transfer energy between the windings, which is the fundamental operating principle of a transformer.