Impedance

Definition of Impedance

Im`ped´ance
n.1.(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 R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2, where f = frequency and L = self-inductance; for a circuit with capacity X = 1
, where C = capacity.

Related Words

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
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