Definition of Impedances. Meaning of Impedances. Synonyms of Impedances

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

Definition of Impedances

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 Impedances from wikipedia

- Nominal impedance, approximate designed impedance Impedance matching, the adjustment of input impedance and output impedance Mechanical impedance, a measure...
- Ambrose Fleming in 1889. Impedances could thus be added vectorially. Kennelly realised that this graphical representation of impedance was directly analogous...
- the impedance of the source (that is, its internal impedance or output impedance). For two impedances to be complex conjugates their resistances must be...
- reduced to a finite network with one series impedance   Z   {\displaystyle \ Z\ } and two parallel impedances   1 / Y   {\displaystyle \ 1/Y\ } and   Z...
- interconnected with low impedance outputs connected to high impedance inputs. These impedances are poorly defined and nominal impedances are not usually ****igned...
- The wave impedance of an electromagnetic wave is the ratio of the transverse components of the electric and magnetic fields (the transverse components...
- and can measure impedances from μΩ to TΩ. Impedance analyzers are a class of instruments which measure complex electrical impedance as a function of...
- impedance, Z, normalized by the reference impedance, Z0. The impedance Smith chart is then an Argand plot of impedances thus transformed. Impedances with...
- the derivation of the image impedances of a simple 'L' network is given below. The 'L' network consists of a series impedance, Z, and a shunt admittance...
- electrical engineering, the input impedance of an electrical network is the measure of the opposition to current (impedance), both static (resistance) and...