1. The problem statement, all variables and given/known data I'm supposed to find the current in a circuit with a voltage source, capacitor, and resistor in series. The voltage source is described by V=V0ejwt. Here, j is the complex number j2=-1, and i is the current 2. Relevant equations I=C*dv/dt 3. The attempt at a solution I have several sources of confusion with this question. First, in the equation I=C*dv/dt, does that v refer to the voltage source, or specifically the voltage drop across the capacitor? Can I use Kirchoff's voltage law with this type of circuit? I tried this and got: V0ejwt - iR - q/c = 0 Then taking the time derivative of the equation: V0jwejwt - R*di/dt - i/c = 0 I then have no idea how to solve this differential equation. Even rewriting with euler's identity: V0jw[cos(wt)+jsin(wt)]=R*di/dt+i/c Any help would be greatly appreciated.