impedance

Plural: impedances

Noun

• a material's opposition to the flow of electric current; measured in ohms
• The act of impeding; that which impedes; a hindrance.
• A measure of the opposition to the flow of an alternating current in a circuit; the aggregation of its resistance, and inductive and capacitive reactances; the ratio of voltage to current treated as complex quantities.
• A quantity analogous to electrical impedance in some other energy domain
• a measure of opposition to motion of something subjected to a force; the ratio of force to velocity treated as complex quantities.
• A quantity analogous to electrical impedance in some other energy domain
• the ratio of sound pressure to volume flow rate treated as complex quantities.

Synonyms

electric resistance, electrical resistance, ohmic resistance, resistance, resistivity

Related Words

impediment