5.13 Determine the initial and final conditions for the circuit of Figure P5.27. wwor t=0 ic(t) R₂ C R3 ww Figure P5.27 RI the r the 5.18 Determine the initial and final conditions for the circuit of Figure P5.47. Assume Vs = 9 V, R₁ = 10 ks, and R2 = 20 ΚΩ. Rs + Vs RC R2R3 Figure P5.47 5.25 Just before the switch is opened at t = 0 in Figure P5.21, the current through the inductor is 1.70 mA in the direction shown. Determine the voltage across R3 just after the switch is opened. Vs = 12 V L = 0.9 mH R₁ = 6 k R₂ = 6 k R3 = 3 k t=0 R2 + + Vs R1 IL + L R3VR3 Figure P5.21 - 5 5.27 Steady-state conditions exist in the circuit shown in Figure P5.27 att < 0. The switch is closed at t = 0. V₁ = 12 V - R₁ = 0.68 ΚΩ R₂ = 2.2 k R3 = 1.8 k C = 0.47 uF Determine the current through the capacitor at t = 0+, just after the switch is closed. www. ic(t) R₂ t=0 C R32 www Figure P5.27 ww RI V₁ 5.31 Just before the switch is opened at t = 0 in Figu P5.21, the current through the inductor is 1.70 mA in the direction shown. Vs = 12 V L = 0.9 mH R₁ = 6 k R₂ = 6 k R3 = 3 k Determine the time constant of the circuit for t > 0. t=0 R2 IL + + + S www R1 L R3VR3 - Figure P5.21