A circuit includes a capacitor that charges over time. If the resistance of the circuit is 5.0 Ω, the capacitance is 0.20 F, and the potential of the circuit is 6.0 V, what is the potential across the capacitor after a time of 2.0 seconds, assuming the capacitor is initially uncharged? 2.0 V 5.2 V 4.0 V 0.81 V