Magnet wire
（重定向自Enameled wire）
![Inductor made with magnet wire wound around a toroidal core](/Images/godic/202501/11/Toroid_electronic3042.jpg")
![Cross-sectional view of AWG33 magnet wire taken using a scanning electron microscope](/Images/godic/202501/11/AWG33_Magnet_WIre_Cross_Section3042.png")
Magnet wire or enameled wire is a copper or aluminium wire coated with a very thin layer of insulation. It is used in the construction of transformers, inductors, motors, speakers, hard disk head actuators, electromagnets, and other applications that require tight coils of insulated wire.