http://imgur.com/WPZWkJf The final voltage across the capacitor is the same as the source voltage is 90 V since a capacitor behaves as an open circuit in presence of a DC voltage. But what about the resistor? He is placed in series with the capacitor and wouldn't it be: final voltage cap = 90 V - voltage across the resistor? There is a voltage drop over the resistor right? Edit: NEver mind. I was confusing the meaning of short circuit with open circuit and a capacitor with inductor. No current is flowing through the cap and so the voltage on its terminals like the source voltage. My excuses.