Four Circuits Have the Form Shown in the Diagram

Multiple Choice

Four circuits have the form shown in the diagram. The capacitor is initially uncharged and the switch S is open. The values of the emf , resistance R, and the capacitance C for each of the circuits are Rank the circuits according to the time after switch S is closed for the capacitors to reach half their final charges, least to greatest.

A) 1, 2, 3, 4
B) 2, 4, 3, 1
C) 1, 3, 4, 2
D) 4, 2, 1, 3
E) 3, 1, 2, 4