Physics
Inductive Reactance Calculator
Find an inductor's reactance at a given frequency.
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Inductive reactance is an inductor's frequency-dependent opposition to AC current.
The math behind it
XL = 2π·f·L. It rises with frequency, so inductors block high frequencies.
Worked Example
60 Hz, 100 mH → about 37.7 Ω.
Frequently Asked Questions
Why does it pass DC?
At 0 Hz the reactance is zero, so DC flows freely (limited only by wire resistance).
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