What is reactance Wikipedia?

In electric and electronic systems, reactance is the opposition of a circuit element to the flow of current due to that element’s inductance or capacitance. Greater reactance leads to smaller currents for the same voltage applied.

What is reactance in English?

reactance in British English (rɪˈæktəns ) noun. 1. 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.

What causes reactance?

Inductive reactance is caused by devices in which wire is wound circularly — such as coils (including line reactors), chokes, and transformers. Reactance that occurs in a capacitor is known as capacitive reactance.

What is the reactance of a component?

Reactance, in electricity, measure of the opposition that a circuit or a part of a circuit presents to electric current insofar as the current is varying or alternating. Steady electric currents flowing along conductors in one direction undergo opposition called electrical resistance, but no reactance.

What is reactance of capacitor?

The opposition to the flow of alternating current due to capacitance is called “capacitive reactance.” It is measured in ohms just like resistance and inductive reactance. In capacitors, the current leads voltage by 90 degrees.

What is difference between reactance and resistance?

Resistance and reactance are the properties of an electrical circuit that opposes the current. The main difference between reactance and resistance is that resistance measures the opposition to a flow of current, whereas reactance measures the opposition to a change in current.

What is difference between reactance and impedance?

Reactance, resistance, & impedance (what’s the difference?) Inductive reactance increases with frequency and inductance. Capacitive reactance decreases with frequency and capacitance. Impedance represents total opposition provided by reactance and resistance.

What is XC and XL?

Reactance is measured in ohms ( ). There are two types of reactance: capacitive reactance (Xc) and inductive reactance (XL). The total reactance (X) is the difference between the two: Total Reactance, X = XL – Xc.

Why does a capacitor block DC?

A capacitor blocks DC as once it gets charged up to the input voltage with the same polarity then no further transfer of electrons can happen accept to replenish the slow discharge due to leakage if any. hence the flow of electrons which represents electric current is stopped.

Is impedance good or bad?

In general: High impedance sources provide high voltage but low current. Equal impedance between source and headphones is good for portable power requirements, but not necessarily for sound quality.

What is inductor voltage?

An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. An inductor is characterized by its inductance, which is the ratio of the voltage to the rate of change of current.

What do you mean by reactance?

In electric and electronic systems, reactance is the opposition of a circuit element to the flow of current due to that element’s inductance or capacitance. Greater reactance leads to smaller currents for the same voltage applied.

What does reactance mean?

Reactance Definition. Broadly, reactance refers to the idea that people become upset when their freedom is threatened or eliminated, so much so that they attempt to reassert their lost freedom.

What is the relation between inductance and reactance?

Inductance is a quantity that describes a property of a circuit element. Reactance is the effect of that inductance at a given frequency. A clear difference because the units for each is different. Inductance is the ability to create a voltage within a conductor or a nearby conductor by changing the current flow in that the first conductor.

What is reluctance and reactance?

As nouns the difference between reluctance and reactance is that reluctance is unwillingness to do something while reactance is (physics|electrics) the opposition to the change in flow of current in an alternating current circuit, due to inductance and capacitance; the imaginary part of the impedance.