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Magnetic Field Terminology
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Magnetic Susceptibility
A dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field.
Lorentz Force
The force experienced by a charged particle moving through a magnetic field.
Magnetic Flux
The measure of the amount of magnetic field passing through a given area.
Permeability
The measure of the ability of a material to support the formation of a magnetic field within itself.
Hysteresis Loop
The curve showing the relationship between the induced magnetic flux density and the magnetizing force. It illustrates the history dependence of magnetic properties.
Magnetic Field Lines
Imaginary lines used to represent the strength and direction of a magnetic field.
Magnetic Dipole Moment
A vector quantity that represents the strength and orientation of a magnet's poles.
Ampère's Law
A law that relates the integrated magnetic field around a closed loop to the electric current passing through the loop.
Paramagnetism
A form of magnetism which occurs only in the presence of an externally applied magnetic field.
Curie Temperature
The temperature at which a ferromagnetic or ferrimagnetic material becomes paramagnetic.
Magnetization
The vector field that expresses the density of permanent or induced magnetic dipole moments in a magnetic material.
Faraday's Law of Induction
The law stating that a change in magnetic flux can induce an electromotive force (EMF) in a closed circuit.
Magnetic Reluctance
A measure of the opposition that a material or component presents to the magnetic flux, similar to electrical resistance in circuits.
Ferromagnetism
The basic mechanism by which certain materials form permanent magnets or are attracted to magnets.
Diamagnetism
A form of magnetism that occurs in materials where the magnetic moments of the electrons cancel out, resulting in a slight repulsion from a magnetic field.
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