Definition of reactance - the non-resistive component of impedance in an AC circuit, arising from the effect of inductance or capacitance or both and causin. Reactance Theory is something that probably happens to everyone, even if we don't know what it is. Read on to get a better understanding of your. Reactance definition, the opposition of inductance and capacitance to alternating current, expressed in ohms: equal to the product of the sine of the angular.


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Even though the balls were exactly the same, we felt a strong urge to trade them out. In fact, we spent so much time and energy switching balls and monitoring the door watching for a teacher so we could switch back reactance definition timethat I suspect we had little actual play time.

Reactance | Definition of Reactance by Merriam-Webster

Why did we do this? The answer lies in what is referred to as reactance theory.


This reactance definition states that when people are restricted in some way they reactance definition a strong need to resist and fight back to gain their freedom.

Just as we traded the playground balls, people who are told not to do something often feel an urge to do the very thing they're denied.

What is reactance? - Definition from

This and further work on the topic gives us a reason why people are motivated to rebel to forced decisions and tells us what motivates these behaviors. American psychologist Jack Brehm Brehm went on in his career to explain reactance definition expand upon the reactance theory, focusing on freedoms and the choices people make when their freedom is threatened.

Freedom and Reactance Theory The basis of Brehm's reactance theory is founded on the removal of freedom from choices.

  • Reactance | Definition of reactance in English by Oxford Dictionaries
  • Reactance | Define Reactance at
  • Jack Brehm and Reactance Theory

The higher the frequency, the less charge will accumulate and the smaller the opposition to the current. Inductance Inductive reactance is a property exhibited by an inductor, and inductive reactance exists based on the fact that an electric current produces a magnetic field around it.

In the context of an AC circuit although this concept applies any time current is changingthis magnetic field reactance definition constantly changing as a result of current that oscillates back and forth. It is this change in magnetic field that induces another electric current to flow in the same wire, in a direction such as to oppose the flow of the current originally responsible for producing the magnetic field known as Lenz's Law.

Hence, inductive reactance is an opposition to the change of current through an element.

Reactance - definition of reactance by The Free Dictionary

H at a frequency of 2. If the frequency is doubled to 4.

If the frequency is halved to 1. As the capacitance of a component increases, its reactance definition reactance becomes smaller negatively closer to zero in imaginary terms, assuming the frequency is held constant.

Brehm's Reactance Theory: Definition & Overview

reactance definition As the frequency increases for a given value of capacitance, the capacitive reactance becomes smaller negatively closer to zero in imaginary terms.

If C is the capacitance in farads F and f is the frequency in Hz, then the capacitive reactance -jXC, in imaginary-number ohms, is given by: F and frequency in megahertz MHz.

As a real-world example of capacitive reactance, consider a capacitor with a value of 0. F at a frequency of 2.