Develop a differential equation for iL in the circuit of Fig. P6.55. Solve it for t ≥ 0. The switch was closed at t = 0 and then reopened at t = 0.5 s, and the element values are Vs = 18 V, Rs = 1Ω, R1 = 5Ω
R2 = 2 Ω, L = 2H, and C = 1/17 F.
iL1 = ?
iL2 = ?
The complete solution is iL1 + iL2.