86-1 The source-free parallel circuit i(0)=I R C (0-)= Re∫ KCL:-+ odt -i(to)+C doo RLJto 十 +-b=0 r dt Let v= aest CAs2e”+ As,st e+— 0 R Ae(Cs+s/R+1/l=0§6-1 The source-free parallel circuit 0 0 (0 ) (0 ) V i I = = − −  0 2 + + = st st st e L A e R As CAs e ( ) 0 1 : 0 0 + − + =  dt d dt i t C R L KCL t t    0 1 1 2 2 + +  =   dt L d dt R d C st Let  = Ae ( / 1/ ) 0 2 Ae Cs + s R+ L = st R i(t) L C  Re f