Energy in Capacitors: the Capacitive Network Shown in the Figure

question 41

Multiple Choice

Energy in capacitors: The capacitive network shown in the figure is assembled with initially uncharged capacitors. A potential difference, V_ab = +100V, is applied across the network. The switch S in the network is kept open. Assume that all the capacitances shown are accurate to two significant figures. What is the total energy stored in the seven capacitors?

• A) 48 mJ
• B) 72 mJ
• C) 96 mJ
• D) 120 mJ
• E) 144 mJ

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