1. The problem statement, all variables and given/known data You need to modify a simple charging RC circuit (power supply, resistor, and capacitor in series) to maintain the same maximum current but lower the the time constant and make it charge faster. Which of the following will accomplish it? A) Same R, lower C. B) Same R, higher C. C) Higher R, same C. D) Lower R, same C. E) Lower R, lower C. 2. Relevant equations I=V/R*(1-e^(-t/RC)) for a charging RC circuit. 3. The attempt at a solution In my textbook, it says that resistance is small, than it's easier for current to flow. I think the answer is D, but someone else told me A. Can someone help?