In the shown circuit with an initially uncharged capacitor and two identical resistors R, what are the currents immediately after closing switch S?
Options

Question

In the shown circuit with an initially uncharged capacitor and two identical resistors R, what are the currents immediately after closing switch S?

G1 Physics · Accepted Answer

At t=0⁺ the uncharged capacitor behaves as a short circuit, so the capacitor branch carries ε/R through the upper resistor. The lower identical resistor is shorted by the capacitor branch and has zero potential difference, hence Iᵣ=0. Correct answer: C.