Inductive Reactance


Inductive Reactance is the opposition offered by an inductor to the alternating current flow, or simply AC current. An inductor has the property of resisting the change in the flow of current and hence it shows some opposition which can be termed as reactance, as the frequency of the input current should also be considered along with the resistance it offers.

·        Indication − XL

·        Units − Ohms

·        Symbol − Ω

In a purely inductive circuit, the current IL lags the applied voltage by 90°. Inductive reactance is calculated by,

XL=2πfLXL=2πfL

Where f is the frequency of the signal. Hence inductive reactance is a function of frequency and inductance.

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