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# Illustration B-Field of a Helmholtz Coil along the Symmetry Axis (Opposite Currents) - Graph

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Plot of the magnetic field $$B$$ of a Helmholtz coil along the symmetry axis $$z$$. Here, the two currents in the coils circle in the opposite direction, which leads to the fact that the magnetic field between the coils is linear.

In addition, the magnetic fields $$B_1(z)$$ and $$B_2(z)$$ of the individual coils were plotted. Their sum gives the total magnetic field $$B(z)$$ of the Helmholtz coil.