Capacitor Impedance Rechner
Berechnen Sie capacitive reactance at any frequency unter Verwendung von Xc = 1/(2piFC).
µF
Hz
Capacitive Reactance (Xc)
15.92 Ω
Capacitive Reactance (Xc) vs Capacitance
Formel
## Capacitive Reactance **Xc = 1 / (2 x pi x f x C)** Reactance decreases with frequency: capacitors pass high frequencies and block low frequencies (DC).
Lösungsbeispiel
10 uF capacitor at 1 kHz.
- 01C = 10 uF = 0.00001 F
- 02Xc = 1 / (2 x pi x 1000 x 0.00001)
- 03Xc = 1 / 0.06283 = 15.92 ohms
Häufig Gestellte Fragen
Why does reactance decrease with frequency?
At higher frequencies the capacitor charges/discharges faster, presenting less opposition to current flow.
Is reactance the same as resistance?
No. Reactance causes a 90-degree phase shift between voltage and current. It does not dissipate power.
What about ESR?
Real capacitors have equivalent series resistance (ESR) that adds to the impedance and does dissipate power.
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