Definition of Impedance. Meaning of Impedance. Synonyms of Impedance

Here you will find one or more explanations in English for the word Impedance. Also in the bottom left of the page several parts of wikipedia pages related to the word Impedance and, of course, Impedance synonyms and on the right images related to the word Impedance.

Definition of Impedance

Impedance
Impedance Im*ped"ance, n. [Impede + -ance.] (Elec.) The apparent resistance in an electric circuit to the flow of an alternating current, analogous to the actual electrical resistance to a direct current, being the ratio of electromotive force to the current. It is equal to rootR^2 + X^2}, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2[pi]fL, where f = frequency and L = self-inductance; for a circuit with capacity X = 1 [div] 2[pi]fC, where C = capacity.

Meaning of Impedance from wikipedia

- Nominal impedance, approximate designed impedance Impedance matching, the adjustment of input impedance and output impedance Mechanical impedance, a measure...
- In electrical engineering, impedance is the opposition to alternating current presented by the combined effect of resistance and reactance in a circuit...
- electrical engineering, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for...
- The characteristic impedance or surge impedance (usually written Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current...
- Mechanical impedance is a measure of how much a structure resists motion when subjected to a harmonic force. It relates forces with velocities acting...
- Impedance control is an approach to dynamic control relating force and position. It is often used in applications where a mani****tor interacts with its...
- electrical engineering, the input impedance of an electrical network is the measure of the opposition to current (impedance), both static (resistance) and...
- electrical engineering, the output impedance of an electrical network is the measure of the opposition to current flow (impedance), both static (resistance) and...
- Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting from an acoustic...
- A quarter-wave impedance transformer, often written as λ/4 impedance transformer, is a transmission line or waveguide used in electrical engineering of...