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Inductive reactance is the property of an inductive coil that resists the change in alternating current (AC) through it and is similar to the opposition to direct current (DC) in a resistance.
\(X_L\) is defined to be the inductive reactance, given by \[X_L = 2\pi fL,\] with \(f\) the frequency of the AC voltage source in hertz. Inductive reactance \(X_L\) has units of ohms and is greatest at high frequencies.
22 wrz 2023 · AC Inductance and Inductive Reactance. The opposition to current flow through an AC Inductor is called Inductive Reactance and which depends lineally on the supply frequency. When connected to an AC supply, the current flowing through an inductive coil produces a self-induced emf opposing the emf that initially set up the current.
Chapter 1 Useful Equations And Conversion Factors. AC Circuit Equations. PDF Version. Inductive Reactance. Capacitive Reactance. Impedance in relation to R and X. Z L = R + jX L. Z C = R - jX C. Ohm’s Law for AC. Series and Parallel Impedances. All impedances must be calculated in complex number form for these equations to work. Resonance.
Inductors and Inductive Reactance. Suppose an inductor is connected directly to an AC voltage source, as shown in Figure 23.45. It is reasonable to assume negligible resistance, since in practice we can make the resistance of an inductor so small that it has a negligible effect on the circuit.
Inductive reactance can be calculated using this formula: X L = 2πfL; The angular velocity of an AC circuit is another way of expressing its frequency, in units of electrical radians per second instead of cycles per second. It is symbolized by the lowercase Greek letter “omega,” or ω. Inductive reactance increases with increasing ...
For inductors in ac circuits, we find that when a sinusoidal voltage is applied to an inductor, the voltage leads the current by one-fourth of a cycle. The opposition of an inductor to a change in current is expressed as a type of ac reactance.
