Magnetic field

:For other senses of this term, see magnetic field (disambiguation).

See also

General

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• Electric field - effect produced by an electric charge that exerts a force on charged objects in its vicinity.
• Electromagnetic field - a field composed of two related vectorial fields, the electric field and the magnetic field.
• Electromagnetism - the physics of the electromagnetic field: a field, encompassing all of space, composed of the electric field and the magnetic field.
• Magnetism - phenomenon by which materials exert an attractive or repulsive force on other materials.
• Magnetohydrodynamics - the academic discipline which studies the dynamics of electrically conducting fluids.

Mathematics

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• Ampere's law - magnetic equivalent of Gauss's law.
• Biot-Savart law - describes the magnetic field set up by a steadily flowing line current.
• Magnetic helicity - extent to which a magnetic field "wraps around itself".
• Maxwell's equations - four equations describing the behavior of the electric and magnetic fields, and their interaction with matter.

Applications

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• Helmholtz coil - a device for producing a region of nearly uniform magnetic field.
• Maxwell coil - a device for producing a large volume of almost constant magnetic field.
• Earth's magnetic field - a discussion of the magnetic field of the Earth.
• Dynamo theory - a proposed mechanism for the creation of the Earth's magnetic field.
• Electric motor - AC motors used magnetic fields