Impedance in RC Circuits

In a capacitive circuit, as in an inductive circuit, impedance is the resultant of phasor addition of R and XC.

The below Equation is the mathematical representation for impedance in an R-C circuit.

Impedance in RC Circuits


A 50 Ω XC and a 60 Ω resistance are in series across a 110V source (Figure 7). Calculate the impedance.

Simple RC Circuit

Figure 7 : Simple R-C Circuit


Impedance in RC Circuits

Z = √ (602 + 502)

Z = √6100

Z = 78.1 Ω

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