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AP Physics 2
11.8 Resistor-Capacitor (RC) Circuits
IntermediateMCQGraphicalConceptual21k
A single rectangular circuit schematic oriented horizontally. The left vertical branch contains a capacitor with two parallel horizontal plates labeled C. The right vertical branch contains a zigzag resistor labeled R. The top horizontal wire contains an open single-pole single-throw switch labeled S tilted upward at 30 degrees. The bottom wire is a continuous straight horizontal line connecting the bottom of the capacitor to the bottom of the resistor. No other labels, lines, text, or axes appear.
Circuit schematic showing the charged capacitor, open switch, and resistor.
A capacitor with capacitance \(C\) is fully charged so that the potential difference across its plates is \(\Delta V_0\). At time \(t = 0\), the capacitor is connected in a single closed loop containing an open switch and a resistor of resistance \(R\), and the switch is immediately closed. Which of the following best describes the graph of the magnitude of the current \(I\) through the resistor as a function of time \(t\) after the switch is closed?

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