and 13 as vallabies. close 13 = 1 + 12 switch Part B: 4uF 2UF 150 9 The capacitors in the picture on the right hand side are fully discharged. At time =0, the switch is closed and plate #2 plate #1 the capacitors start to charge. 230 9 3UF 7UF a) Calculate the time constant of the RC-circuit. Reg = 15092 + 2309 = 3809 + 12 V Ceg = 4UF + 2 F + 3 F 7 UF = 3.270MF TRC = RegCeg = 38092 3.270uF = 1.243ms