Table of Contents
Does reactance increase with inductance?
When resistance increases, the circuit current decreases and vice versa. Inductance is directly proportional to the inductive reactance.
How is reactance related to inductance?
inductive reactance, or XL, is the product of 2 times p (pi), or 6.28, the frequency of the ac current, in hertz, and the inductance of the coil, in henries. XL =2p x f x L. L = the inductance value of the coil in henries.
What happens to the inductive reactance of the inductance is doubled?
What happens to the inductive reactance and the current in a purely inductive circuit if the frequency is halved? Both, inducting reactance and current will be doubled. Inductive reactance will be doubled and current will be halved.
What happens when inductance is increased?
When the current through an inductor is increased, it drops a voltage opposing the direction of current flow, acting as a power load. In this condition, the inductor is said to be charging, because there is an increasing amount of energy being stored in its magnetic field.
What happens when inductive reactance is equal to capacitive reactance?
Resonance in an AC circuit Consider what happens with the impedance equation: When the inductive and capacitive reactances are equal, a number of things happen: This condition is known as resonance.
What causes reactance to increase?
An alternating current has a time-averaged rate-of-change that is proportional to frequency, this causes the increase in inductive reactance with frequency.
What causes inductive 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 happens to inductive reactance and the current?
The inductive reactance of an inductor increases as the frequency across it increases therefore inductive reactance is proportional to frequency ( XL α ƒ ) as the back emf generated in the inductor is equal to its inductance multiplied by the rate of change of current in the inductor.
What would happen to the amplitude of the current in the inductor if the inductance lll were doubled?
What would happen to the amplitude of the current in the inductor if the inductance L were doubled? There would be no change in the amplitude of the current.
What is the effect of a low frequency on the inductive reactance and capacitive reactance?
When f = 0, XC is infinite and decreases as frequency increases. That is, the lower the frequency, the greater the capacitive reactance; the higher the frequency, the less the reactance for a given capacitor.
Why does current decrease when inductance and reactance increases?
In an inductive circuit, when inductive reactance XL increases, the circuit current decreases and vice versa. In oral or verbal, Inductive reactance is a kind of resistance. When resistance increases, the circuit current decreases and vice versa.
How does inductive reactance affect the power factor?
Inductive reactance is a kind of resistance. When inductive reactance increases, the circuit power factor decreases and vice versa. Inductance is directly proportional to the inductive reactance and current. Power factor is inversely proportional to the inductance and inductive reactance.
How is inductive reactance measured in an AC circuit?
Definition: Inductive reactance is the opposition offered by the inductor in an AC circuit to the flow of ac current. It is represented by (X L) and measured in ohms (Ω). Inductive reactance is mostly low for lower frequencies and high for higher frequencies.
How does the number of turns affect inductance?
Number of Wire Wraps, or “Turns” in the Coil All other factors being equal, a greater number of turns of wire in the coil results in greater inductance; fewer turns of wire in the coil results in less inductance.