1. The problem statement, all variables and given/known data 2. Relevant equations For a basic RC circuit during charging: q = CV(1-e-t/RC) i = V/R (e-t/RC) 3. The attempt at a solution I can solve basic RC circuits but this is just out of my realm of understanding. I can also find the max charge of the capacitor. I'm not looking for a full solution yet, I'm just hoping for someone to tell me if the best strategy is to: 1. Set up a lot of equation with Kirchoff's rules and solve a differential equation, 2. Use the fact that the current through R3 will increase from some minimum to to maximum exponentially (though I wouldn't know what the time constant would be), or 3. Use another strategy.