Problem 1: (20 pts.) In an RC series circuit, : - 12.0 V. R - 1.26 MQ, and Ce= 1.70 /F. (a) Calculate the time constant. (b) Find the maximum charge that will appear on the capacitor during charging. (c) How long does it take for the charge to build up to 7.92 40" Problem 2: (15 pts.) Switch S in in the figure is closed at time t = 0, to begin charging an initially uncharged capacitor of capacitance C - 15.1 /F through a resistor of resistance R = 22.4 0. At what time is the potential across the capacitor equal to that across the resistor? Problem 3: (15 pts.) The figure shows an ideal battery of emf = 13 V, a resistor of resistance R = 6.3 0, and an uncharged capacitor of capacitance C = 6.3 /F. After switch S is closed, what is the current through the resistor when the charge on the capacitor is 9.5 CT