Regarding the RC series circuit, this article will explain the information below. Equation, magnitude, vector diagram, and impedance phase angle of RC series circuit impedance Impedance of the RC series circuit An RC series circuit (also known as an RC filter or RC network) is an electrical circuit consisting of a resistor \(R\) and a capacitor \(C\) connected in series, driven by a voltage source or current source. The impedance \({\dot{Z}}_R\) of the resistor \(R\) and the impedance \({\dot{Z}}_C\) of the capacitor \(C\) can be expressed by the following equations: \begin{eqnarray}{\dot{Z}}_R&=&R\\\\{\dot{Z}}_C&=&-jX_C=-j\frac{1}{{\omega}C}=\frac{1}{j{\omega}C}\end{eqnarray} ,where \({\omega}\) is the angular frequency, which is equal ...