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The circuit in the figure shows a capacitor, two ideal batteries
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The circuit of the figure shows a capacitor, two ideal batteries, two resistors, and a switch S. Initially S has been open for a long time. If it is then closed for a long time, what is the change in the charge on the capacitor? Assume C = 10 uF, E1 = 1.0 V, E2 = 3.0 V, R1 = 0.20 ohm, and R2 = 0.40 ohm.