Magnet wire, also known as enameled wire, is made up of two types, which are copper or aluminum. It has a fragile layer of insulation coating for generating electromagnetic fields when energized. It is often used for creating coils in several applications including inductors, transformers, motors, hard disk head actuators, speakers, and electromagnets. It is mainly used for interchanging electrical energy with magnetic energy. Moreover, magnet wire is shaped and is available in round, square, or rectangular cross-section.