reactance
[ree-ak-tuh ns]
- Electricity. the opposition of inductance and capacitance to alternating current, expressed in ohms: equal to the product of the sine of the angular phase difference between current and voltage and the ratio of the effective voltage to the effective current. Symbol: XCompare capacitive reactance, inductive reactance.
- Acoustics. acoustic reactance.
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Origin of reactance
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for reactance
Contemporary Examples
Such a response, known in psychology as reactance, generally is short-lived.
Historical Examples
The combined effect of resistance and reactance is called impedance.
PhysicsWillis Eugene Tower
Reactance is the effect of self-induction in hindering the flow of current.
PhysicsWillis Eugene Tower
Impedance, however, does not equal the sum of resistance and reactance.
PhysicsWillis Eugene Tower
The degree to which the current is opposed by the capacity is the reactance of that capacity for that frequency.
Cyclopedia of Telephony & Telegraphy Vol. 1Kempster Miller
The degree in which any current is opposed by inductance is termed the reactance of that inductance.
Cyclopedia of Telephony & Telegraphy Vol. 1Kempster Miller
reactance
- the opposition to the flow of alternating current by the capacitance or inductance of an electrical circuit; the imaginary part of the impedance Z, Z = R + i X, where R is the resistance, i = √–1, and X is the reactance. It is expressed in ohmsCompare resistance (def. 3)
- the opposition to the flow of an acoustic or mechanical vibration, usually due to inertia or stiffness. It is the magnitude of the imaginary part of the acoustic or mechanical impedance
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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