1. , 
. U = 0.
3%
2. I = 5,25 105 . 
101 . 103 ?
3%
3. u = f(i) 5 350 . ?
3%
4. (1 2), , . U = 200 . ?
4%
5. :
) , ;
) R = 16 .
, , 8 .
4%
6. , R = 40 .. . I , 125 .
4%
7. (1 2) . I1 = 0,6 . ?
4%
8. , . . I , U = 80 .
4%
9. U U 20 ? 3.8.
4%
10. ( ) R = 30 , . . U, , 2 0,4 .
4%
11. ( ) R = 3 , . . U, , 1 0,4 .
4%
12. - (. ). , , 1 =24 , R1 = 4 , 2 = 60 , R2 = 20 .
5%
13. (. ). , , =36 , R1 = 5 , R2 = 9 (.).
|
|
|
5%
14. (. ) J = 12 . : R1 = 12 ; R2 = 4 ; R3 = 8 ; R4 = 16 .
U . . .
6%
15. . 3.14. = 36; R = 24 ; J = 1 .
5%
16. R = 12,5 , , 148 , 5 154 , 40 .
R, , U 0,8 U 1,1 U, U = 220 .
5%
17. I R . , 5 , 0,8 12 , 0,9 . 0,55 U = 12 . R1 = 40 .
R, = 24 .
10%
18. 0, r r .
4%
19. .. ( ). 10%
.
1. R . r ?
4%
2. ? : , , I , W , l , R , ma .
8%
3. , , , . , ?
4%
4. , y1 y2, , , , .
4%
5. , , :
| , | |||||
| , |
, , ?
4%
6. , 
, .
, , S1 = 2,5 2; S2 =2 2.
4%
7. , , , ? m = const.
|
|
|
4%
8. , Z , , l .
5%
9. , . L1 = 2; L2 = 2; = 2; I = 1 .
5%
10. w = 1000 R1 = 8 , R2 = 12 , h = 15 . = 0,025 , m = 2080. ?
5%
11. w = 2000 . I = 0,1 . : R1 = 9 , R2 = 11 . m = 2080 ?
5%
12. : I =10 ; w = 50 ; l 1 = 10 ; l 2 = 3 ; l 3 = l 5 = 6 ; l 4 = 10 ; l 6 = 25 ; d = 2 ; 1 = 2 = 3 = 5 = 5 /; 0 = 100 /.
4 6.
6%
13. (. ) S =1 2 : l 1 = l 2 = 125,2 ; l 3 = 62,5 ; m1 = 200; m2 = 100; m3 = 100.
(. ). .
6%
 |
14. , l = 120 , : w1 = 100 w2 = 500 . I2 = 2 . . , , 0 = 1,2 .
5%
15. l =138 ; d = 0,1 , w = 400. 4.14. , I, 0 = 1 .
6%
16. (. ) , = 1,4 , l = 20 .
d , ? , .
5%
17. S = 12 2; l = 22 . S = 6 2. F = 450 ; = 
. 4.16.
, , d = 0,1 .
5%
18. 2d. = 0,8 . , 0,02 ? l 1 = 30 ; l 2 = 10 . 4.16. .
5%
19. F = 1860 ; l = 69,9 ; S = 10 2; d =0,1 . ( 5.16), . .
5%
20. L , m = 10-3 /. w = 100. .
5%
