Helmholtz coils

Helmholtz coils are a pair of identical circular coils positioned parallel to each other and spaced apart by a distance equal to their radius. When an electric current passes through them, they produce a uniform magnetic field in the space between the coils. This consistent magnetic field is useful for precise scientific experiments, magnetic field calibration, and testing sensitive instruments. The design minimizes variations in the magnetic field, making it ideal for creating stable, predictable magnetic environments in laboratory settings.