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Helmholtz coil

physics

Learn about this topic in these articles:

magnetism

  • magnetic field from current loop
    In magnetism: Magnetization effects in matter

    …a configuration is called a Helmholtz coil. By carefully orienting and adjusting the current in a large Helmholtz coil, it is often possible to cancel an external magnetic field (such as Earth’s magnetic field) in a region of space where experiments require the absence of all external magnetic fields.

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