Transformers

Did you know that a transformer is an electrical device which changes or transforms an alternating current (AC) signal form A high voltage transformer. The device typically consists of 2 sets of insulates wire,coiled around a common iron core. Electrical power is applied to one of these coils called the primary coil, and then is magnetically transferred to the other coil.Because the two coils of a transformer are very close to each other, an electric current through the primary coil generates a magnetic field which is also around the secondary coil.