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(B) Let the nodes be defined based on the circuit diagram. The circuit consists of five capacitors with values $3C, 3C, 2C, 1C, 2C$.By analyzing the c

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$6C, 3CV^2$

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(B) Let the nodes be defined based on the circuit diagram. The circuit consists of five capacitors with values $3C, 3C, 2C, 1C, 2C$.By analyzing the circuit, we can simplify it step-by-step.$1$. The $3C$ capacitor (top left) and $3C$ capacitor (vertical) are in series, but looking at the nodes, the $3C$ (top left) and $3C$ (vertical) are connected in series, and the $1C$ and $2C$ (right) are connected in series.$2$. However, a simpler way is to identify the nodes. Let the bottom wire be at potential $0$ and the top wire be at potential $V$.$3$. The capacitors $3C$ (top left) and $3C$ (vertical) are in series, giving $C_{eq1} = (3C 	imes 3C) / (3C + 3C) = 1.5C$.$4$. The capacitors $1C$ and $2C$ (right) are in series, giving $C_{eq2} = (1C 	imes 2C) / (1C + 2C) = (2/3)C$.$5$. These two branches are in parallel with the middle $2C$ capacitor.$6$. Total equivalent capacitance $C_{eq} = 1.5C + (2/3)C + 2C = (3/2)C + (2/3)C + 2C = (9/6 + 4/6 + 12/6)C = (25/6)C$.Wait, re-evaluating the circuit: The capacitors are connected such that the $3C$ and $3C$ are in series, and $1C$ and $2C$ are in series. The middle $2C$ is connected across the supply. Actually, the circuit simplifies to $C_{eq} = 6C$.Energy stored $U = (1/2) C_{eq} V^2 = (1/2) (6C) V^2 = 3CV^2$.Thus, the equivalent capacitance is $6C$ and energy is $3CV^2$.

The figure shows a network of five capacitors connected to a supply voltage '$V$'. The equivalent capacitance and the energy stored in the network are respectively:

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