1.(20 pts) The switch in the circuit shown below has been in the position 1 for a long time before moving to the position 2 at t = 0. (a) Is this RL or RC switching circuit. (b) Is this Natural or Step Response for t≥0? (c) Find v(0'). (d) What is the time constant t of the circuit for t≥0? (e) Find v(). (f) Write the expression for v(t) for t≥0. (g) Write the expression for i(t) for t≥0. (h) Write the expression for vi(t) for t≥0. 45 V 4 ΚΩ 8kQ ww 20 µF 2 -° 2 ΚΩ ww 24 ΚΩ ww 1=0 + V1 12 k 60 V