Capacitor In Series With Resistor Dc. As a function of time 21 6 15 v e m f 1 e t r c c h a r g i n g. As soon as the switch is closed current flows to and from the initially uncharged capacitor.
The manner in which the capacitor charges up is shown below. The time constant τ for an r c circuit is τ r c. An rc circuit is one that has both a resistor and a capacitor.
As charge increases on the capacitor plates there is increasing opposition to the flow of charge by the repulsion of like charges on each plate.
You will recall that a series circuit provides only one route for the current to flow between two points in a circuit so for example the diagram below shows a resistor in series with a capacitor between the points a and b. Impedance calculation the resistor will offer 5 ω of resistance to ac current regardless of frequency while the capacitor will offer 26 5258 ω of reactance to ac current at 60 hz. As a function of time 21 6 15 v e m f 1 e t r c c h a r g i n g. An rc circuit is one that has both a resistor and a capacitor.