Magnetic pole
Encyclopedia
Magnetic pole may refer to:
- One of the two ends of a magnetMagnetA magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets.A permanent magnet is an object...
- The magnetic poles of astronomical bodies, a special case of magnets, two special cases of which are the Geomagnetic poles:
- The North Magnetic PoleNorth Magnetic PoleThe Earth's North Magnetic Pole is the point on the surface of the Northern Hemisphere at which the Earth's magnetic field points vertically downwards . Though geographically in the north, it is, by the direction of the magnetic field lines, physically the south pole of the Earth's magnetic field...
of planet Earth, a point where the north end of a compass points downward - The South Magnetic PoleSouth Magnetic PoleThe Earth's South Magnetic Pole is the wandering point on the Earth's surface where the geomagnetic field lines are directed vertically upwards...
of planet Earth, a point where the south end of a compass points downward - A Geomagnetic PoleGeomagnetic poleThe geomagnetic poles are antipodal points where the axis of a theoretical dipole intersects the Earth's surface. This dipole is equivalent to a powerful bar magnet at the center of the Earth, and it is the dipole that comes closest to accounting for the magnetic field observed at the Earth's...
, determined by a statistical fit to measurements of the Earth's magnetic field
- The North Magnetic Pole