1. The problem statement, all variables and given/known data RC circuits and discharging a capacitor ok, say I have the following: R = 4700 ohm C = 39 micro farads they are arranged in series and the battery is replaced using a function generator, which we set to produce a square wave (on/off). With any frequencies set. How can I graph the Vcap vs time? 2. Relevant equations 3. The attempt at a solution I know the equation V(t) = Vo * e^(-t/RC) can be used.. however in this case what is Vo (initial voltage) here? if this is so then what is the purpose of the square wave function generator? Doesn't it matter on how big the frequencies are set?