Capacitors of and are connected in parallel

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential

Problem

Capacitors of

2\,\mu\text{F}

and

6\,\mu\text{F}

are connected in parallel. This combination is connected in series with a

5\,\mu\text{F}

capacitor. If the charge on the

5\,\mu\text{F}

capacitor is

30\,\mu\text{C}

, the emf of the battery connected across the network is closest to (a)

6.0\,\text{V}

(b)

9.8\,\text{V}

(c)

48\,\text{V}

(d)

15\,\text{V}