37. .
38. .
39. .
40. .
41. .
42. .
43. .
44. , .
45. .
46. .
47. .
48. .
49. .
50. .
51. .
52. .
53. .
54. .
55. .
56. .
57. .
6 (й6)
1
.
1. - . , , R=50000 , R=10000 . .
2. 380, 10 , 20 , .
3. , 80 2, 4,5 . =4.
4. , = 10%, = 1,0, = 0,9.
5. R, h = 1 . L=50, b=0,05, r = 4 .
6. . 420, 440. 200 280 .
7. (a = 0,14), S = 200 2. F = 2,1 1,55 2.
8. , 140 2, min= 3,5%, η=10, τ=0,3, , , r1 = 2,0; , k=1,0.
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9. , 50 2, 6550 .
10. : 802, 4,5. =4.
11. 12 . , . 4 /3, .
12. 1084 60 / . , (=20 /3), , 5/3.
13. , , W = 15 /, = 2,8 /3, = 0,5 /3.
6 (й6)
.
14. 60126. W = 100 / = 105/. ..= 2,6 /3, = 0,3/3. ʳ , G=1200 3/.
15. , . 380 . . R=4 . R =40 , R= 20. .
16. , . , ᒺ 63. 20 /3. ʳ , 500/.
17. , , 2 4000 / , +250, +100.
18. , (), 220 , 50 , R= 10 , R=30 . .
19. , t = 21, t =19 , = 745..., = 760 ...
20. 815 = 120 2. 4 . 2 14 . 2 . , η =0,47, z = 0,845, =1,3, = 100 .
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21. 1015 , n = 16, = 32,0 /2.
22. ( 5 , α ) 2010. 21001860.
23. , , . 1,51,0=1,5 2. , V= 0,8 /.
24. ( - ), g1 =4, g2 =6 . ' , , W=100 /., t=1 .
25. . , t = 180, t = 240, k = 0,15.
26. 3 65 . .
27. , 150 , 6,5/. : tn=100C; jn=75%, t=-100C, jn=70%. 300/.
28. 60/ . (), , , 0,1 /3.
29. (3/) 500-600 550, 150.
30. : 15000/, tn =150.
31. , 20105 1,8. 150.
32. : =5 , l =15, 1,2· 1,6.
33. ϳ : 30, 26, 10, 5, . , .
6 (й6)
.
34. . () 10002 , 0,98 /.2 0. 200, 100.
35. 380, 10 , 20 , .
36. , 2 2500 / , +300. +140. ٳ n = 1,247 /, =0,24 /×.
37. , 80 2, 4,5 . =4.
38. ϳ : 30, 26, 10, 5, . , .
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39. . , , . : R=1000 ; R =80000 ; R =40000 .
40. 60126. W = 100 / = 105/. ..= 2,6 /3, = 0,3/3. ʳ , G=1200 3/.
41. , . 380 . . R=4 . R =40 , R= 20. .
42. , . , ᒺ 63. 20 /3. ʳ , 500/.
43. , , 2 4000 / , +250, +100.
44. ( 5 , α ) 2010. 21001860.
45. , , . 1,51,0=1,5 2. , V= 0,8 /.
46. 40105 . W=110 /. ..=3,2 /3, .=0,2 /3.
47. ( - ), g1 =4, g2 =6 . ' , , W=100 /., t=1 .
48. . , t = 180, t = 240, k = 0,15.
49. 3 65 . .
50. , 150 , 6,5/. : tn=100C; jn=75%, t=-100C, jn=70%. 300/.
51. 60/ . (), , , 0,1 /3.
52. . , , . : R=1000 ; R =50000 ; R =30000 .
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53. , 80 3,0 1, .