A second-order system is one for which the L’s can be ...

Thus, we have two equations and two unknowns. To solve, one must know and . Solving, we get, so (Note – see modification needed to include final response) (8) Then, find from (Note – see modification needed to include final response) (9) The key to finding A1 and A2 is always to know the inductor current and capacitor voltage at t = 0+. ................
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