What is magnet wire used for? What is magnet wire?
Magnet wire is a product, which has principally two tasks: it has to be conductive in longitudinal direction and, at the same time, insulating in transversal direction. 

According to Ampere´s Law, when an electric current passes through a conductor, an annular magnetic field is created around the conductor. If the conductor is wound in the shape of a coil, the magnetic field generated in each subsequent turn of the wire passes through the centre of the coil and is superimposed to form a stronger field. The adjacent turns of wire, however, must be insulated from each other in order to avoid a short circuit and as a result, a malfunction of the electric equipment.

Electromagnetic coils and windings are used in devices such as electric motors and generators, transformers, electromagnets, sensors coils or inductors. A very good example for the application of magnet wires is a typical car. In a modern electric or hybrid vehicle, the electric motor (which is simultaneously a generator) is a core 
of the powertrain. However, even in a traditional combustion engine, one can find dozens or even hundreds of coils, e.g., cooling, fuel or air pumps, cooling fans orblowers, power of windows, mirrors or seat positioners and all the electromagnetic valves, actuators and detectors. In addition to the automotive, coils and windings are used in energy production, transformation and distribution, household appliances, industrial motors, hand tools, electronics and much more.

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