A resistor with resistance 14M? is connected in series with a capacitor with capacitance 1.0?F and a battery with emf 13.5.0V. Before the switch is closed at time t=0, the capacitor is uncharged.
a. what is the time constant
b. what fraction of the final charge is on the plates at time t=47 s
c. what fraction of the initial current remains at t=47 s