👉 A solenette is a device used in electrical engineering to control current through a circuit. It consists of an iron core wrapped around a wire loop, with the outer loop wound with conductive material such as copper or aluminum. The core and the wire loop are connected by a spring or spring coil, which exerts a force on the wire loop when it is in contact with the magnetizing field. The solenette can be used to control current through a circuit by changing its magnetic properties.