. In the circuit shown in Figure 4, the switch has been open for a long enough time when t < 0. The switch is closed at t = 0. Find vo(t) (i.e., the voltage across the 12- resistor) for t > 0. (25 points) Hints: (1) Because the 12-2 resistor is parallel to the 4-2 resistor and 1.6-H inductor, the voltage across the 12-2 resistor can be calculated with a sum of the voltages across the 4-2 resistor and the 1.6- H inductor. (2) The voltages across the 4-2 resistor and the 1.6-H inductor can be calculated according to the current through the inductor (when t > 0) (i.e., the transient current, i(t)). 602 t=0 12 V 1202 vo(t) Figure 4 1.6 H 4