current-density wave
91Fractional vortices — In a standard superconductor, described by a complex field |Psi|e^{iphi} (condensates wave function), vortices carry quantized magnetic field: a consequence of 2pi invariance of the phase phi of the condensate wave function |Psi|e^{iphi}. There a …
92Magnesium diboride — Identifiers CAS number …
93Electromagnetic field — The electromagnetic field is a physical field produced by electrically charged objects. It affects the behavior of charged objects in the vicinity of the field.The electromagnetic field extends indefinitely throughout space and describes the… …
94Galaxy — This article is about the astronomical structure. For other uses, see Galaxy (disambiguation). NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 55,000 light years in diameter and approximately 60 million light… …
95Magnetic moment — Electromagnetism Electricity · …
96Skin depth — is a measure of the distance an alternating current can penetrate beneath the surface of a conductor.When an electromagnetic wave interacts with a conductive material, mobile charges within the material are made to oscillate back and forth with… …
97Gauge fixing — Quantum field theory (Feynman diagram) …
98Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
99Four-vector — In relativity, a four vector is a vector in a four dimensional real vector space, called Minkowski space. It differs from a vector in that it can be transformed by Lorentz transformations. The usage of the four vector name tacitly assumes that… …
100Electrical resistance — is a ratio of the degree to which an object opposes an electric current through it, measured in Ohms. Its reciprocal quantity is electrical conductance measured in Siemens. Assuming a uniform current density, an object s electrical resistance is… …
