impedanceim‧ped‧ance /ɪmˈpiːdəns/ noun [singular, uncountable] 
Examples
ExamplesEXAMPLES FROM THE CORPUS
word sets- Ideally, any alternating voltmeter should possess infinite impedance and any a.c. meter negligible impedance.
- Its high input impedance means that it does not load a signal source which it copies at its output.
- Parameters and are in fact dimensionless while and respectively exhibit impedance and admittance dimensions.
- The impedance of the battery alone is enough to regulate their input.
- The output impedance is about 0.02 ohm at the 5V end and 0.1 ohm at the 15V end of the range.
- The phasors representing the e.m.f. and potential difference across impedance Z then have lengths in the same proportion to and respectively.
- Transformer coupling of the source and/or detector to the Wheatstone network is often adopted to match impedance levels or for isolation purposes.
WORD SETS► Electricity
CollocationsA, AC, alternating current, nounamp, nounanode, nounarmature, nounbattery, nounblackout, nounblow, verbboost, nounbrownout, nounbulb, nouncathode, nouncell, nouncharge, nouncircuit, nouncircuit breaker, nouncontact, nouncurrent, noundiode, noundirect current, noundischarge, verbdischarge, noundisconnect, verbdry battery, noundry cell, noundynamo, nounelectric shock, nounelectrify, verbelectrocute, verbelectromagnetic, adjectivefilament, nounfluorescent, adjectivefuse, nounfuse, verbfuze, noungalvanic, adjectivegalvanism, noungenerator, nounground, nounground, verbhydroelectric, adjectiveimpedance, nounimpulse, nounincandescent, adjectiveinduction, nouninduction coil, nouninductive, adjectiveinsulating tape, nouninsulator, nounintegrated circuit, nounkilowatt, nounkW, kWh, LED, nounlight-emitting diode, nounlive wire, nounload, nounmaster switch, nounmicrowave, nounnegative, adjectivenuclear reactor, nounohm, nounoscilloscope, nounoutput, nounovercharge, verboverload, verbphotoelectric cell, nounpoint, nounpower, nounpower, adjectivepower cut, nounpower line, nounpower plant, nounpower point, nounpower station, nounpylon, nounrecharge, verbresistor, nounrewire, verbsocket, nounspark, nounspark, verbwatt, nounwattage, noun
COLLOCATIONS FROM THE CORPUSADJECTIVE► high
technical a measure of the power of a piece of electrical equipment to stop the flow of an alternating current· This provides a relatively high input impedance looking into their bases and a low output impedance at the emitters.· Its high input impedance means that it does not load a signal source which it copies at its output.
NOUN► input· This provides a relatively high input impedance looking into their bases and a low output impedance at the emitters.· The input impedance also deteriorates at high frequencies.· At low-enough frequencies to satisfy, the input impedance is virtually which is becoming very large.· The term iterative impedance is applied to a load that renders the input impedance of an asymmetric section equal to it.· Negative series-inserted feedback always raises the input impedance while negative shunt-inserted feedback reduces it.· Its high input impedance means that it does not load a signal source which it copies at its output.
► output· Finally, is the small-signal, complex, output impedance when the input is open circuit to signals.· This provides a relatively high input impedance looking into their bases and a low output impedance at the emitters.· The output impedance is about 0.02 ohm at the 5V end and 0.1 ohm at the 15V end of the range.