 | WordWeight : Weighing the Words |
| WordWeight : Weighing the Words |
Impedance
Pronunciation : Im*ped"ance
Part of Speech : n.
Definition : Defn: 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 R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2pfL, where f = frequency and L = self-inductance; for a circuit with capacity X = 1 ? 2pfC, where C = capacity.
[Impede + -ance.] (Elec.)
Source : Webster's Unabridged Dictionary, 1913
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