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The '''magnetic diffusivity''' controls the rate of [[Magnetic diffusion|magnetic field diffusion]]. ...York, NY |isbn=978-1-4614-4283-7 |edition=2nd}}</ref> refer to it as the 'magnetic viscosity'. ...

{{Short description|Potential energy of a magnetised body in an external magnetic field}} ...sicist [[Pieter Zeeman]], primarily known for the [[Zeeman effect]]. In SI units, it is given by ...

...(mainly quantitatively) [[Ferromagnetism|ferromagnetic]] materials, and [[magnetic core]]s. ...minvar Having a Rectangular Hysteresis Loop'', Williams, Goertz, ''Journal of Applied Physics'' '''23''', 316 (1952); in fact it is rectangle if B-μ<sub> ...

{{Short description|Type of motion of magnetic fields}} ...ly to induction and diffusion of magnetic fields through the material. The magnetic diffusion equation is a [[partial differential equation]] commonly used in ...

...0261/163494|hdl-access=free}}</ref> and from there the magnetic properties of the sample can be deduced. ...th's<ref>{{Cite journal|last=Smith|first=D. O.|year=1956|title=Development of a Vibrating‐Coil Magnetometer|journal=Rev. Sci. Instrum.|volume=27|issue=26 ...

{{Short description|Model for magnetic circuits}} {{About|modeling the magnetic field in magnetic components such as transformers and chokes|the circuit element|Gyrator}} ...

...rom the calculus point of view and does not bring in the kinematics effect of Special Relativity which are absolutely unimportant in the Galilean limit." | title = Forty years of Galilean Electromagnetism (1973-2013) ...

{{Short description|Sortation system consisting of a chain of conveyor belts}} ...s luggage, apparel, parcels, packages, and mail. This system uses a series of independently operated short conveyor belts mounted transversely along the ...

This article summarizes [[equation]]s in the theory of [[electromagnetism]]. ...'''), used as the definition of the [[electric field|'''E''' field]] and [[magnetic field|'''B''' field]].]] ...

{{Short description|Turbulence that concerns the regimes of magnetofluid flow at high Reynolds number}} '''Magnetohydrodynamic turbulence''' concerns the chaotic regimes of [[magnetofluid]] [[fluid flow|flow]] at high [[Reynolds number]]. [[Magneto ...

[[File:Capability curve of an electrical generator.png|thumb|upright=1.5|D-curve. Active power is on t ...([[MVAr]]) that the generator can provide. The curve represents a boundary of all operating points in the MW/MVAr plane; it is typically drawn with the r ...

{{For|current versions of Maxwell's equations|Maxwell's equations}} ...l organized and sometimes confusing to scientists. A comprehensive summary of the electrodynamic principles was needed. ...

...tor]]. An '''LC circuit''' is a variety of resonant circuit, and consists of an [[inductor]], represented by the letter L, and a [[capacitor]], represen ...in [[farad]]s. The [[angular frequency]] <math>\omega\,</math> has units of [[radian]]s per second. A capacitor stores energy in the electric field be ...

{{Short description|Superseded theory of electromagnetism}} ...ss=free}}</ref> Weber electrodynamics is mainly based on the contributions of [[André-Marie Ampère]], [[Carl Friedrich Gauss]] and [[Wilhelm Eduard Weber ...

{{Short description|Overview of the branches of physics}} {{Outline|Outline of physics}} ...

...|waves]] into particles called [[photon]]s. Photons are massless particles of definite [[energy]], definite [[momentum]], and definite [[Spin (physics)|s ...een them). At present it is more common to quantize the Fourier components of the [[vector potential]]. This is what is done below. ...

{{short description|Method of imaging magnetic fields at microscopic scales}} ...cite journal|doi=10.1038/srep15097|pmid=26459874|pmc=4602221|title=Imaging of current density distributions with a Nb weak-link scanning nano-SQUID micro ...

...he [[circuit diagram]]) using the [[lumped element model]] and the ability of network analysis to [[Network synthesis filters|synthesise a network]] to m This approach is especially useful in the design of [[mechanical filter]]s—these use mechanical devices to implement an electri ...

...ometer used to measure extremely weak magnetic fields, by using properties of alkali vapors. ...e atoms begin to absorb light from the laser producing a drop of intensity of the laser after it passes through the cell which is measurable by a photodi ...

...pacemakers nowadays may also have an MRI in spite of effects of the strong magnetic fields. This does not apply on older devices, and details for medical profe ...ed between tissues based on the [[Relaxation (NMR)|relaxation]] properties of the hydrogen atoms therein. ...