Three capacitors are connected in series as shown in the figure. The capacitances are C1 = 4.6 μF, and C2 = 7.6 μF, C3 is unknown, and the charge stored in each capacitor is Q = 7.5 μC. a. Find a formula to capacitor C1 to find an expression for the potential difference ΔV12 across it.  b. Express the potential difference ΔV12 through potentials V1 and V2 where V1 and V2 are the potentials measured in the wires 1 and 2, respectively, relative to the negative side of the battery.  c.  Calculate the potential at point 3, V3 in V for capacitor V2.

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Combination of Capacitors

The connection of capacitors can be established in a circuit in two ways.