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high-frequency alternating field

См. также в других словарях:

  • High voltage — The term high voltage characterizes electrical circuits, in which the voltage used is the cause of particular safety concerns and insulation requirements. High voltage is used in electrical power distribution, in cathode ray tubes, to generate X… …   Wikipedia

  • Alternating current — (green curve). The horizontal axis measures time; the vertical, current or voltage. In alternating current (AC, also ac) the movement of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge …   Wikipedia

  • High-voltage direct current — HVDC or high voltage, direct current electric power transmission systems contrast with the more common alternating current systems as a means for the bulk transmission of electrical power. The modern form of HVDC transmission uses technology… …   Wikipedia

  • High Priest (Judaism) — Part of Judaic series of articles on Priesthood in Judaism   …   Wikipedia

  • Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… …   Wikipedia

  • geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

  • Radio-frequency induction — For the common use of RF induction process of heating a metal object by electromagnetic induction, see induction heating Radio frequency induction or RF induction is the use of a radio frequency magnetic field to transfer energy by means of… …   Wikipedia

  • Superconducting Radio Frequency — (SRF) science and technology involves the application of electrical superconductors to radio frequency devices. The ultra low electrical loss of the superconductor yields RF resonators with extremely high quality factors, or Q . For example, it… …   Wikipedia

  • Earth's field NMR — Nuclear magnetic resonance (NMR) in the geomagnetic field is conventionally referred to as Earth s field NMR (EFNMR). Note that the same acronym is used for electric field NMR.EFNMR is a special case of low field NMR.When placed in a constant… …   Wikipedia

  • List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …   Wikipedia

  • Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …   Wikipedia

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