对照电容元件与电感元件 i(t=c du(t) dt u C n(t)=u(0)+i(2)B di(t dt 1 i(t)=i(to)+ L u()d() wr(t)=Cu(t) (t)=L2(t) 2 = +   t t u L i( t ) i( t ) 0 ( )d( ) 1 0 i u + － L 对照电容元件与电感元件 ( ) t i t u L d d = i u + － C t u t i t C d d ( ) ( ) =  = +   t t i d C u t u t 0 ( ) 1 ( ) ( ) 0 w (t ) C u (t ) C 2 2 1 = w (t ) L i (t ) L 2 2 1 =