:
F , 2;
l1, l2 (. 2), ;
D , ;
D , ;
D= D + D , ;
V , /;
V , /;
t , ;
t , ;
t = t + t , ;
I , ;
j , /2;
P , ;
P , .
2
:
:
11 + 12 = (0,751)d;
d:
l1 + l2 = (4...5)d.
. 4.
4
| F, 2×10-6 | ||||||||
| D, ×10-3 | 1718 | 1921 | 2426 | 2729 | 3032 | 3335 | 3739 | 4042 |
:
D = (0,2...0,3) D ;
D = (0,7...0,8) D .
V (. 5) . , .
5
| V10-3, / | V.10-3, /, | ||
| 0,51,5 | 25 | 1520 | |
| 1,52,0 | 45 | 2030 | |
| 2,53,5 | 57 | 3050 | |
| 37 | 815 | 100200 |
V , (. . 5).
, .
V. = 0,75V..
:
t = D / V;
t = D / V.;
t = t + t.
: = (), = rF, r (. 6).
6
| з106, | |
| 5020 | |
| 6030 | |
| 70100 | |
| 120150 | |
| 3060 |
= 
,
1 2 , 1 = 0,25; 2 = 0,30,
= ,
( . 7).
7
|
|
|
| 1,52,0 | |
| 2,23,0 | |
| 2,33,2 | |
| 2,7 | |
| , | 0,81,0 |
(. 3).
3
Q, :
Q = R I2, I = 
R ;
I .
Q , /,
Q = VFg(T T1) + mVFg 
+ 2lF 
= 0,7 , ;
V ;
F ;
, /;
g , /3;
T , T = 2270 K;
T1 .
T1 = 293 K ( ); T1 T.
T1 = (T + 0,6T)/2,
m0 , / ( m0 = 272×103 /);
l , /;
, ;
d/d , d/d = 2×1055×105 /.
, R
.
, I/I.
(, ) I/I ³ 2,53; I/I ³ 5.
