Rvi2rdt=GCvdΘ+kFΘ0·dt
I 
2dt= 
(1)
, G=S·l·λ
R 
= 
Ρv=ρ0(1+αV) (2)
Cv=C0(1+βV)
Ρ0 ,0 V=O0C
α, β- , ρv Cv V
t K. . (1) (2)
=- (3),
Ak,AH .
t
Bk= ∫0i2k dt . . . .
|
(4)
= 
; = 
;
f(V)= 
. 1, V=f (AV) (. 2)
.1
S 
; V 
V (5)
. . , - ST (5)
√ BK √ BK
ST= = (6)
√ AK - AH T
. . .
| Vk, 0 | , 
| |
| UH ≤ 10B(Al) | ||
| UH ≥ 20B(Al) | ||
| Al |
C= 
. .
.2
( ) .
BK= 
= BK+BKA
B= 
=2I2 
(5)
t (≈ 0,045 0,15
≈0,3 
BkA=2·Ta (6)
 | |
BK=2·t (7) S=∞ = Const
 |  |
BK=I2(t+Ta) (8)
. .
I2t ≥ BK
:
1) : I , I , VH, S, V, t
:VK
:VK≤V
)
Bk= 
) 2 AH=f (VH)
) AK=AH+Bk∙ 
= AH+A
) 2 V=f(A)
2) :VH, V, I, I, t
: Sn
AH=f(VH) . 2; Bk=
A=f(V) ( . 2); S= 
.2
. .
(1)
W= 
Fdt=dW; Fx= 
(2)
)
B1=μ0H1; 
Hdl=∑I; H1dl=i1; H1·2 
a=i1; B1= 
; 0=4 10-7/
DF=i 
(3)
F= 210-7(20103)2 =400 H≈40
i1=20 kA; 0,4
i2=20 kA;
a =0,4 ;
i1 a i2 l =2,0 ;
|
|
|
F= 
(4)
)
i1 i2 a
id = h d; idy= h dy;
dFa=dF∙Cosα= r dF; r2=a2+(y-)2;
i1i2 a · l
d 2Fa=2·10-7 · ddy;
h2 [a2+(y-)2]
Fa=2 
, 
)
(5)
F=2 
(6)
:
a h a2 h2
K1= 2 arctg - ln (1 +);
h a h2 a
)
i 
; i 
F= 
(7)
- -
K2=f (;);
h +h
K2=1 =0;
K2=1 
2
)
L=4l(
)* 
F= 
= 
L=2l(ln 
F=10 
(ln 
 |
..
ia=ImSinwt, i=ImSin (wt-1200), ic=ImSin (wt-2400),
i1i2
f=210-7K a, H/
I2m
fab=2 10-7K SinwtSin(wt-1200), H/ (1)
a
I2m
fac=210-7 K SinwtSin(wt-2400), H/ (2)
2a
I2m
fbc=210-7K Sin(wt-1200) Sin(wt-2400), H/ (3)
a
I2m 1 I2m
fa=fab+fac=210-7K a Sinwt [Sin(wt-1200)+ 2 Sin (wt-2400) ]=2 10-7K a *
*(
)
=0 (wt)1=150; (wt)2=750
I2m 3 √3
fama(wt)2=fB=fba-fbc=2 10-7K a (4 Cos2wt- 4 Sin2wt);
I2m
fBma=√3 10-7K a, H/ wt=750 . Wt=1650 .
Im=iy , .. i= 
i2
fB=√3 10-7K 
i(3) 2 √3
.. =; i= i(3)
i(2) √3 2
. . . . i.
