The capacitors in Figure are initially uncharged. The capacitances are C1 = 4.0F, C2 = 8.0F, and C3 = 12F, and the battery's potential difference

The capacitors in Figure are initially uncharged. The capacitances are C1 = 4.0μF, C2 = 8.0μF, and C3 = 12μF, and the battery's potential difference is V = 12V When switch S is closed, how many electrons travel through

(a) Point a,

(b) Point b,

(c) Point c, and

(d) Point d? In the figure, do the electrons travel up or down through

(e) Point b and

(f) Point c?

V Lis D C C