Tape DispensersA transformer is an electrical device that is used to transfer electrical energy from one circuit to another. A transformer consists of two or more coils of wire that are wound around a core, which is typically made from iron or another magnetic material. When an alternating current (AC) voltage is applied to one of the coils, also known as the primary winding, it creates a changing magnetic field in the core, which in turn induces a voltage in the other coil, also known as the secondary winding. The magnitude of the voltage in the secondary winding is determined by the number of turns in the primary and secondary windings, as well as the frequency of the applied voltage. Transformers are used in a wide range of applications, including power distribution, audio amplification, and electric power transmission.