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Opus in profectus

Impedance

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capactive reactance

derive it

XC = 1
fC

inductive reactance

derive it

XL = 2πfL

impedance

phasors

total reactance

X = XL − XC

XC = 2πfL − 1
fC

impedance

Z = R + j(XL − XC)

Z = ±√[R2 + (XL − XC)2]