![]() ![]() When an equal electric current is passed through both coils, they generate magnetic fields with the same strength and direction. Control circuit (optional): In some applications, a control circuit may be incorporated to regulate the electric current flowing through the coils, allowing precise control of the magnetic field strength.Power supply: A power supply, such as a battery or an external DC source, provides the voltage necessary to drive an equal electric current through both coils.Coil alignment: The coils are aligned coaxially and parallel to each other, with their centers separated by a distance equal to their radius.Two identical coils: These coils have the same number of turns, wire type, and radius, ensuring they produce equal magnetic fields when the same current is applied to them.The main components of Helmholtz coils are: This configuration was first introduced by the German physicist Hermann von Helmholtz in the 19th century. They are designed to generate a uniform magnetic field in the region between the coils when an equal electric current is passed through them. ![]() Helmholtz coils are a pair of identical, parallel, coaxial coils separated by a distance equal to their radius. ![]()
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