reactance element

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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 — Réactance La réactance d un circuit électrique est la partie imaginaire de son impédance induite par la présence d une inductance ou d un condensateur dans le circuit. La réactance est notée X et s exprime en Ω (Ohm). Si X > 0, le dipôle est… …   Wikipédia en Français

• reactance — [rē ak′təns] n. [ REACT + ANCE] Elec. opposition to the flow of alternating current in a circuit or circuit element, caused by inductance or capacitance and measured in ohms: symbol, X …   English World dictionary

• Réactance — La réactance d un circuit électrique est la partie imaginaire de son impédance induite par la présence d une inductance ou d un condensateur dans le circuit. La réactance est notée X et s exprime en Ω (Ohm). Si X > 0, le dipôle est inductif Si …   Wikipédia en Français

• Magnetic reactance — is the parameter of a passive magnetic circuit or its element, which is equal to the square root of the difference of squares of the full and effective magnetic resistance for a magnetic current, taken with the sign plus, if the magnetic current… …   Wikipedia

• Lumped element model — In general, the lumped component model is a way of simplifying the behaviour of spatially distributed systems into a topology consisting of discrete entities that approximate the behaviour of the distributed system under certain assumptions. It… …   Wikipedia

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

• Electrical impedance — Electromagnetism Electricity · …   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

• Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …   Wikipedia

• Dipole antenna — A schematic of a half wave dipole antenna connected to an unbalanced coaxial cable. Better practice is to connect the balanced dipole to the unbalanced line with a balun. A dipole antenna is a radio antenna that can be made of a simple wire, with …   Wikipedia