a long time 120. PSPICE tion b. Find Figure P7.42 a) v.(t), t2 102 15 Q b) i(t), t= c) iz(t), t 2 mA 50 Vo32 mH 340 4is 1 mA Figure P7.46 7.43 There is no energy stored in the inductors L, and L2 at the time the switch is opened in the circuit shown in Fig. P7.43. a) Derive the expressions for the currents i (t) and iz(1) for t 2 0. b) Use the expressions derived in (a) to find i (0) and iz(). 20 A 7.47 The PSPICE a lo