Go to Serial R-C circuit impedance calculator

Serial R-C circuit is given in figure bellow

In the stationary regime, we can use complex impedance for capacitor

and **R** for resistor.

So final expression for serial R-C circuit impedance

It is obvious that with signal frequency increase, impedance of parallel R-C circuit very slightly decreases, since impedance of the capacitor decreases with frequency, and resistor R resistance dominate the impedance.

Go to Serial R-C circuit impedance calculator

**External links:**

Serial R-C circuit impedance on hyperphysics

Serial R-C circuit impedance on allaboutcircuits

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