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Reactance (other)
Reactance may refer to: * Electrical reactance, the opposition to a change in voltage due to capacitance (capacitive reactance) or in current due to inductance (inductive reactance); the imaginary component of AC impedance * Magnetic reactance, a similar effect in magnetism * Reactance (psychology), an emotional reaction to pressure or persuasion that results in the strengthening or adoption of a contrary belief See also * Reactants In chemistry, a reagent ( ) or analytical reagent is a substance or compound added to a system to cause a chemical reaction, or test if one occurs. The terms ''reactant'' and ''reagent'' are often used interchangeably, but reactant specifies a ..., chemical reagents * Reactivity (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Reactance
In electrical circuits, reactance is the opposition presented to alternating current by inductance and capacitance. It's measured in Ohm, Ω (Ohms). Along with resistance, it is one of two elements of Electrical impedance, impedance; however, while both elements involve transfer of electrical energy, no Joule heating, dissipation of electrical energy as heat occurs in reactance; instead, the reactance stores energy until a quarter-cycle later when the energy is returned to the circuit. Greater reactance gives smaller current for the same applied voltage. Reactance is used to compute amplitude and Phase (waves), phase changes of Sine wave, sinusoidal alternating current going through a circuit element. Like resistance, reactance is measured in ohms, with positive values indicating ''inductive'' reactance and negative indicating ''capacitive'' reactance. It is denoted by the symbol X. An ideal resistor has zero reactance, whereas ideal reactors have no shunt conductance and no ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyrator–capacitor Model
The gyrator–capacitor model - sometimes also the capacitor-permeance model - is a lumped element model, lumped-element model for magnetic circuits, that can be used in place of the more common resistance–reluctance model. The model makes permeance elements analogous to electrical capacitance (''see magnetic capacitance section'') rather than electrical resistance (''see magnetic reluctance''). Windings are represented as gyrators, interfacing between the electrical circuit and the magnetic model. The primary advantage of the gyrator–capacitor model compared to the magnetic reluctance model is that the model preserves the correct values of energy flow, storage and dissipation. The gyrator–capacitor model is an example of a Mechanical–electrical analogies#Other energy domains, group of analogies that preserve energy flow across energy domains by making power conjugate pairs of variables in the various domains analogous. It fills the same role as the impedance analogy for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reactance (psychology)
In psychology, reactance is an unpleasant motivational reaction to offers, persons, rules, regulations, advice, recommendations, information, and messages that are perceived to threaten or eliminate specific behavioral freedoms. Reactance occurs when an individual feels that an agent is attempting to limit their choice of response or range of alternatives. Reactance can occur when someone is heavily pressured into accepting a certain view or attitude. Reactance can encourage an individual to adopt or strengthen a view or attitude which is indeed contrary to that which was which is to say, to a response of and can also increase resistance to persuasion. Some individuals might employ reverse psychology in a bid to exploit reactance for their benefit, in an attempt to influence someone to choose the opposite of what is being requested. Reactance can occur when an individual senses that someone is trying to compel them to do something; often the individual will offer resistance and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reactants
In chemistry, a reagent ( ) or analytical reagent is a substance or compound added to a system to cause a chemical reaction, or test if one occurs. The terms ''reactant'' and ''reagent'' are often used interchangeably, but reactant specifies a substance ''consumed'' in the course of a chemical reaction. ''Solvents'', though involved in the reaction mechanism, are usually not called reactants. Similarly, ''catalysts'' are not consumed by the reaction, so they are not reactants. In biochemistry, especially in connection with enzyme-catalyzed reactions, the reactants are commonly called substrates. Definitions Organic chemistry In organic chemistry, the term "reagent" denotes a chemical ingredient (a compound or mixture, typically of inorganic or small organic molecules) introduced to cause the desired transformation of an organic substance. Examples include the Collins reagent, Fenton's reagent, and Grignard reagents. Analytical chemistry In analytical chemistry, a reagent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
