i (t) [ u (t)], . 钒 , : (), :
i (t) =Im sin(wt+yi),
u (t) =Um sin(wt+yu)
. 32:
, , . () f:
[]
, w. :
w = 2pf = [-1] [/]
i (t) u (t) :
u (t), i (t) u, i - , .. ;
Um, Im - () ;
(wt+y) - , ;
yu, yi , t= 0, ;
j = yu-yi ( ) , .
.
, i=Im sin wt , , .
R :
uR = Ri=RIm sin wt=Um sin wt.
L :
uL = - e = = wLIm cos wt = Um sin(wt+ 90).
:
uC = = Um sin(wt -90).
, , .
, , : 10-1 109 . f =50 (w=2 pf = 314 c-1), f = 60 (w = 377 -1), .
f = 50 . 150 200 . .