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{{Short description|Magnet used to produce a magnetic field in a device}} '''Field magnet''' refers to a [[magnet]] used to produce a [[magnetic field]] in a device. It may be a permanent magnet or an [[electromagnet]]. ...

{{Short description|Device used to adjust the homogeneity of a magnetic field}} ...shims"<ref>Weston A. Anderson, ''Electrical Current Shims for Correcting Magnetic Fields''; Rev. Sci. Instrum. 32, 241 (1961)</ref> because of their similar ...

...nding rings that are installed in metal pipe systems to protect electrical devices such as flow meters. ...ame thing also happens when the electrical conductor is stationary and the magnetic field is moving. This is known as [[electromagnetic induction]], and is the ...

'''Electrical measurements''' are the methods, devices and calculations used to measure electrical quantities. Measurement of elec * [[Magnetic flux]] ...

...auxiliary [[magnetic flux]] which is 90 degrees [[out of phase]] from the magnetic flux created by the primary coil.<ref>{{cite web|url=https://www.researchga ...rager spire or shading coil's purpose is to provide sizeable phase-shifted magnetic field (in blue) to keep the contactor on when the main coil flux (in red) p ...

{{Electromagnetism|Magnetic circuit}} ...It is the property of certain substances or phenomena that give rise to [[magnetic fields]]: ...

{{short description|Magnetic analogue of the electric dipole}} ...e '''[[magnetic field]]''' due to natural magnetic dipoles (upper left), [[magnetic monopole]]s (upper right), an [[electric current]] in a circular loop (lowe ...

...etals have better magnetic properties. The magnetic properties such as the magnetic softness of Fe-rich materials can be improved by annealing the metal while ...magnets are permanent. These magnets are used to create magnetic fields in devices such as an automotive [[alternator]]. <ref>{{cite book|authorlink= Charles ...

...y of PHG is explained using [[Maxwell's equations]]. This term unifies all devices that work in line with this definition. PHG can be represented by [[patent] ...Permeability (electromagnetism)|permeability]] or material that excludes [[magnetic field]] under normal temperatures): US5144179 (A), DE102012022152 (A1), CN1 ...

...applications of [[micromagnetics]] such as models of [[magnetic storage]] devices as in [[computer memory]]. ...ions for the [[electric field]] (see [[electrostatics]]) and two for the [[magnetic field]].<ref>[https://feynmanlectures.caltech.edu/II_13.html The Feynman Le ...

...nderground indicators locate faults on an underground system. Often these devices are located in an underground vault. Some fault indicators communicate bac Typically fault indicators sense magnetic field caused by current flows through a conductor or cable. Some of them al ...

{{Short description|Physical quantity, density of magnetic moment per volume}} ...netism|mathematical description of fields surrounding magnets and currents|magnetic field}} ...

...rent flows through the voice coil (from an [[electronic amplifier]]), the magnetic field created by the coil reacts against the magnet's fixed field and moves ...b>s</sub>. At this frequency, the voice coil is vibrating in the speaker's magnetic field with maximum peak-to-peak [[amplitude]] and [[velocity]]. The [[Count ...

...description|Electromagnet used to generate a magnetic field in an electro-magnetic machine}} ...s an [[electromagnet]] used to generate a [[magnetic field]] in an electro-magnetic machine, typically a rotating [[electrical machine]] such as a [[electric m ...

...lectron ''m''{{sub|e}} has the value 9.109×10⁻³¹ kilograms, the magnetic field ''B'' is measured in [[tesla (unit)|tesla]]s, and the angular frequen ...toroidal magnetic fields used in [[magnetic fusion energy]] research, the magnetic field decreases with the major radius, so the location of the power deposit ...

...1063/1.104757 | pages=2854–2856| bibcode=1991ApPhL..58.2854S }}</ref> with devices combining [[spintronics]] and [[micromechanics]] emerging at the turn of th ...entially forms the basis for ultra-high sensitivity, ultra-high resolution magnetic, biochemical, biomedical, and clinical diagnostics. ...

...[magnetometer]]s based on [[SQUID]]s (superconducting quantum interference devices) ...sonance imaging]] (MRI) and [[nuclear magnetic resonance]] (NMR) machines, magnetic confinement [[nuclear fusion|fusion]] reactors (e.g. [[tokamak]]s), and the ...

...tromagnetism it refers to mathematical models that can be used to describe devices that do not produce significant amounts of electromagnetic waves. For insta ...steady electrical currents. Often, however, one may want to calculate the magnetic field due to time varying currents (accelerating charge) or other forms of ...

...that the rotor and magnetic field rotate with the same speed, because the magnetic field is generated through a shaft mounted permanent magnet mechanism and c ...at the same frequency as the rotor when the rotor contains a single dipole magnetic field. The two fields move in "synchronicity" and maintain a fixed position ...

[[File:Magnetic lens.jpg|thumb|Magnetic lens]] ...ctromagnetic field]]s. The term ''optics'' is used because [[magnetic lens|magnetic]] and [[electrostatic lens|electrostatic]] lenses act upon a [[charged part ...