I am sorry, i did't understand that.i am totally confused now. what i wanted to know is how to see current and voltage waveforms on oscilloscope, in a circuit which consists of just two elements a registor R & a capacitor C, and supply votage. When i saw an op-amp in the circuit first question that came to my mind was what an op-amp is doing there ? so the clarification of the problem on my part.
Regarding op_amp circuit:
1. i have to make two circuits and take oscilloscoe inputs from Vcap and Vres?
2. Can't we see current waveform on oscilloscope?