, . , , . x. , , x < x , x > x. , , x < x , x > x - .
1, x , , x, , (...) .
(3.29)
U - (. .3.12).
3.12
1 , i
i = ×tga = S×
tga = S; c = i/ S.
1 1 i
1 = 0,5×I1×U = 0,5×i×a1×U = 0,5×i×a1×x ×
(3.30)
(3.31)
(3.29) ξ,
(3.32)
ξ 1, (S) (, θ).
S ≠ 0, (3.32) ξ (3.32) ξ .
(3.33)
(3.33)
(3.34)
, ξ, .
() 1 N ( 1 N), (3.34) 0,25. ξ 1, ( -) ξ 0.
... ξ, , ξ 0, . ξ +.