Inductive reactance is the opposition that an inductor offers to the change of current in an alternating current (AC) circuit, quantified by the formula $$X_L = 2\pi f L$$, where $$f$$ is the frequency of the AC signal and $$L$$ is the inductance of the inductor. This characteristic causes a phase difference between the voltage across the inductor and the current flowing through it, affecting how energy is stored and released in the circuit. Understanding inductive reactance is essential for analyzing AC circuits and transformer behavior.
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