, , .
1. .
, , , .
:
- , 0, .; .
t ( 1 1 ).
. 322.
:
Ly = a Lx,
a , .
:
S = 0,8 Ly Lx, 2
-440 , -1000 0,663, ..
Lx (-440) = 0,663* Lx (-1000)
() .
1-
23.00 26 -1000 . 10 V0 = 5 /, 310º, . , : .
1. .
2. , 0, , 50 (5) 10 , 500 (50 )
3. 322.
Lx (5 , 10 ) = 163
Lx (50 , 10 ) = 30
4. Ly = a Lx.
1 a = 0,06 ().
Ly (5 , 10 ) = 0,06*163 = 9,8
Ly (50 , 10 ) = 0,0630 = 1,8 .
1-
20.00 10.02 -440 . V0 = 3 /, 270º, . , 5 2 50 1 .
1. ( ) ( ).
|
|
|
2. 122 :
Lx (5 , 2 ) = 0,663*160 = 106 .
Lx (50 , 1 ) = 0,663*118 = 78 .
3. a = 0,03 ( ).
Ly (5,2) =0,03*106 = 3,2 .
Ly (50,1) = 0,03*78 = 2,4 .
4. : .
5
15.00 12.07 -1000 . V0 = 3/, 270, .
, ; .
t = 610-70,97 = 5,8210-7 /2
t = 610-70,3 = 1,810-7 /2
6
:
(, )
1. tn = α x / U0, (, ).
2. -, t = tn tn, .
3. :
=8,310-8 tn .
7
15.00 12.07 -1000 . U0 = 3 /, . (10; 0,5) (25; 1).
1. .
tn = α x / U0 = 0,2310/3 = 0,77 ≈ 1
tn = α x / U0 = 0,2325/3 = 1,92 ≈ 2
2. - 1 2 :
= t 1 () = 10,951,6 = 1,52 /
= t 1 () = 0,20,940,5 = 0,39 /
3. = 8,310-81,52 = 12,610-7
= 8,310-80,39 = 3,210-8
