Introduction To Electromagnets

An electromagnet is a device that generates electromagnetic fields when an electric current flows through it. A conductive winding, matched to the power of the current, is wound around an iron core. This current-carrying coil exhibits magnetism like a magnet, hence the name electromagnet. It is usually made in a bar or horseshoe shape to make the iron core easier to magnetize. Furthermore, to ensure the electromagnet demagnetizes immediately when the power is turned off, it is often made of soft iron or silicon steel, which demagnetizes quickly. Such an electromagnet is magnetic when energized, and the magnetism disappears when the power is turned off. Electromagnets have extremely wide applications in our daily lives, and their invention has greatly increased the power of generators.