(Solved): 3. The capacitive network shown below in Figure 4 is assembled with initially uncharged capacito ...

3. The capacitive network shown below in Figure 4 is assembled with initially uncharged capacitors. A
potential difference, Vab = 100 V, is applied across the network. The switch S in the network is kept open
throughout. The total energy stored in the seven capacitors, in mJ is closest to
A) 48
B) 72
C) 96
D) 120
E) 144
A point charge O
V +100 V
9 ?F
16 µF
15 ?F
6 µF
4 µF
8 µF
12 pF
100 nC and two unknown point charges a. and g are placed as shown in the figure

The capacitive network shown below in Figure 4 is assembled with initially uncharged capacitors. A potential difference, ${\mathrm{V}}_{\mathrm{ab}}=100\mathrm{V}$, is applied across the network. The switch $\mathrm{S}$ in the network is kept open throughout. The total energy stored in the seven capacitors, in $\mathrm{mJ}$ is closest to A) 48 B) 72 C) 96 D) 120 E) 144