EntityQ1307489· pop 17· linked from 81 articlesinput impedanceSign in to savemeasure of the opposition to current, both static and dynamic, into the load network that is external to the electrical sourceConnectionsNominal impedanceEntityInternational Standard Book NumberEntityelectric currentEntityelectrical engineeringEntitypowerEntityOhm's lawEntityohmEntityantennaEntityelectrical circuitEntityfaradEntityelectric powerEntityvacuum tubeEntityoscilloscopeEntityimpedanceEntityoperational amplifierEntitystanding waveEntityradio transmitterEntitymultiplicative inverseEntityelectric reactanceEntityelectric arcEntityCategoriesAudio amplifier specificationsElectrical parameters