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## Homework Statement

Q17. Capacitors C1 and C2 are connected in series and a potential difference is applied to the combination. If the capacitor that is equivalent to the combination has the same potential difference, then the charge on the equivalent capacitor is the same as:

A. the charge on C1

## Homework Equations

q = CV

1/Ceq = sum ( 1/Ci )

## The Attempt at a Solution

Well the answer is given, but I don't understand it. I keep doing the problem according to the formulas, but I get q1*q2 / q1+q2