# What Is the Definition of Reactance?

Reactance refers to the non resistive component of impedance in an AC circuit. It arises from the effect of capacitance or inductance or both which causes the current to be out of point with the electromotive force causing it.
re·ac·tance
[ree-ak-tuhns]
NOUN
1.
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: X
2.
Acoustics. acoustic reactance
Source: Dictionary.com
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