inductive reactance

Question

Inductive reactance X_L in AC of angular frequency ω is:

RankGuru · Accepted Answer

In an AC circuit, an inductor opposes the flow of alternating current. This opposition is called **Inductive Reactance** ($X_L$).
$X_L = \omega L = 2\pi f L$
- $X_L$ is directly proportional to frequency ($f$).
- For DC ($f=0$), $X_L = 0$ (inductor acts as a short circuit).
- Current lags behind voltage by $90^\circ$ in a purely inductive circuit.

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