Problem 4 Find i(t) and v(t) for t > 0 in the circuit below if i(0) = 20A. ↓i(t) 2 H + 592 20 Ω v(t) 192 Problem 5 0, find vo(t). a. If the switch in circuit below has been open for a long time and is closed at t = b. Suppose that the switch has been closed for a long time and is opened at t = 0. Find vo(t). t=0 292 ww 18 V + 492 3 F Vo