Three RC circuits have the emf, resistance, and capacitance given in the accompanying table. Initially, the switch on the circuit is open and the capacitor is uncharged. Rank these circuits in order of increasing

(a) Initial current (immediately after the switch is closed) and

(b) Time for the capacitor to acquire half its final charge. Indicate ties where appropriate?

E (V) Cin R(N) 12 Circuit A Circuit B Circuit C 2 2.