In the resistor-capacitor network shown in the source figure, the battery emf is 12 V and the capacitor is 100 μF. After steady state is reached, what charge is stored on the capacitor, in μC?

Question

G1 Physics · Accepted Answer

At steady state with a DC source, the capacitor behaves as an open circuit. Therefore no current flows through the 10 Ω resistor connected directly in series with the capacitor's upper terminal. The capacitor voltage is consequently equal to the potential difference between the adjacent nodes A and B shown in the source reduction. Now reduce the conducting resistor network. To the right of the 5 Ω and 2 Ω resistors, there are two paths between the same intermediate nodes: 1. a direct 10 Ω verti…