Impedance

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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 root{R^{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.
     [Webster 1913 Suppl.]

From WordNet (r) 2.0 [wn]:

  impedance
       n : a material's opposition to the flow of electric current;
           measured in ohms [syn: {electric resistance}, {electrical
           resistance}, {resistance}, {resistivity}, {ohmic
           resistance}]

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  18 Moby Thesaurus words for "impedance":
     capacitive reactance, clog, cumbrance, electric resistance,
     hindrance, impediment, inductive reactance, magnetic reluctance,
     ohm, ohmage, reactance, reluctance, reluctivity, resistance,
     skin effect, specific reluctance, surface resistance,
     volume resistance