polarity

physics

Learn about this topic in these articles:

Earth’s magnetic field

  • magnetic field of a bar magnet
    In geomagnetic field: Characteristics of Earth’s magnetic field

    …Earth with the north geographic pole at the top of the diagram, the magnet must be oriented with its north magnetic pole downward toward the south geographic pole. Then, as shown in the diagram, magnetic field lines leave the north pole of the magnet and curve around until they cross…

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