The Capacitive Network Shown in the Figure Is Assembled with Initially

question 21

Short Answer

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 initially open but is then closed. Assume that all the capacitances shown are accurate to two significant figures. What is the equivalent capacitance between ab
(a) with the switch S open?
(b) with the switch S closed?

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