1. The problem statement, all variables and given/known data http://imgur.com/OowiMCR As noted in the image: In the circuit below, R1=R2=10kΩ, and C=0.1μF. Plot Vout(t) if the input, Vin, is a step function of height V0 at t=0 2. Relevant equations Vcap=V0-Ce-t/RC 3. The attempt at a solution I was hoping someone could explain what is actually going on in that circuit. I understand the general idea of a capacitor. At t=0 the charge stored by the capacitor is 0 and as time goes on it gains charge. After long t it will be fully charged and there won't be a potential difference between the capacitor and the source so the current will go to 0. I'm just not sure how to read this diagram. It looks nothing like what I have seen. Can I interpret the grounds along the bottom to be connected? Thank you for your help!