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  • Reactance (electronics) — Reactance is a circuit element s opposition to an alternating current, caused by the build up of electric or magnetic fields in the element due to the current. Both fields act to produce counter emf that is proportional to either the rate of… …   Wikipedia

  • Reactance —   A phenomenon associated with AC power characterized by the existence of a time difference between voltage and current variations.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

  • Maximum power transfer theorem — In electrical engineering, the maximum power transfer theorem states that, to obtain maximum external power from a source with a finite internal resistance, the resistance of the load must be equal to the resistance of the source as viewed from… …   Wikipedia

  • Maximum power theorem — In electrical engineering, the maximum power (transfer) theorem states that, to obtain maximum external power from a source with a finite internal resistance, the resistance of the load must be made the same as that of the source. It is claimed… …   Wikipedia

  • AC power — This article deals with power in AC systems. See Mains electricity for information on utility supplied AC power. Usually hidden from the unaided eye, the blinking of (non incandescent) lighting powered by AC mains is revealed in this motion… …   Wikipedia

  • Overhead power line — This article is about power lines for general transmission of electrical power. For overhead lines used to power road and rail vehicles, see Overhead lines. Transmission lines in Lund, Sweden …   Wikipedia

  • Super Trouper (spotlight) — Super Trouper is the registered trademark of a series of follow spotlights manufactured by Strong Entertainment Lighting of Omaha (formerly Strong Electric Corporation of Toledo, Ohio). They provided the inspiration for the hit ABBA song of the… …   Wikipedia

  • реактивная мощность (вар) — — [А.С.Гольдберг. Англо русский энергетический словарь. 2006 г.] Тематики энергетика в целом EN reacting powerreactance powerRPreactive powervolt amperes reactiveVAR …   Справочник технического переводчика

  • X — Power (Medical » Physiology) **** Times (Medical » Physiology) * Xbox (Computing » Hardware) * X windows (Computing » Software) * Xena (Community » Famous) * Multiplied By (Medical » Physiology) * Xax (Academic & Science » Electronics) * Xerxes… …   Abbreviations dictionary

  • Antenna (radio) — Whip antenna on car …   Wikipedia

  • Impedance matching — In electronics, impedance matching is the practice of designing the input impedance of an electrical load (or the output impedance of its corresponding signal source) to maximize the power transfer and/or minimize reflections from the load.… …   Wikipedia

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