Example: Find u(t) 3.5 R i(t) 2RC 2×6× 42 607H 0o=√LC 7× Re∫ 42 D(0)=0 ∴> i(0)=10A c+√ 3.5+√3.52-6=-3.5+2.5=-1 2 3.5-25=-6 D(t)=Ae t+Ae-6tExample: Find (t). i(0) 10A (0) 0 =  = 6 42 1 7 1 1 0 =  = = LC  3.5 2.5 6 2 0 2 s2 = − −  − = − − = −  0 3 5 3 5 6 3 5 2 5 1 2 2 0 2 s1 = − +  − = − . + . − = − . + . = − t t t A e A e 6 1 2 ( ) − −  = + 3.5 42 1 2 6 1 2 1 =   = = RC  R i c i 6 i(t) 7H F 42 1  Re f