Chapter 19, Problem 64P

Graphing the charge on a capacitor as a function of time. An initially uncharged capacitor C charges through a resistor R for many time constants and then discharges through the same resistor. Call Q_max the maximum charge on its plates and I_max the maximum current in the circuit, (a) Sketch clear graphs of the charge on the plates and the current in the circuit as functions of time for the charging process (b) During the discharging process, the charge on the capacitor and the current both decrease exponentially from their maximum values Use this fact to sketch graphs of the current in the circuit and the charge on the capacitor as functions of time.