All About Circuits is a website that âprovides a series of online textbooks covering electricity and electronics.â Written by Tony R. Kuphaldt, the textbooks available here are wonderful resources for students, teachers, and anyone who is interested in learning more about electronics. This specific section, Reactance and Impedance - Capacitive, is the fourth chapter in the Volume II textbook. Topics covered in this chapter include: AC resistor circuits, AC capacitor circuits, series resistor-capacitor circuits, parallel resistor-capacitor circuits, and capacitor quirks. Diagrams and detailed descriptions of concepts are included throughout the chapter to provide users with a comprehensive lesson. Visitors to the site are also encourag...