(a) Consider the circuit in Figure 2.1. The switch S is closed for a long time. At t = 0, the switch is opened. Using the time-domain analysis method, determine the current i(t) for t > 0. 4 F 3 V + 4 F 20 1 V S(t = 0) 3 HS i₁(t) 1Ω 1Ω M Figure 2.1 (12 Marks)