100 4 |
1. ( , ) 3Li6 13?
2. 8 . 135 , 27 .
3. ξ(x, t) , x=100 , t=0,1 . υ 300 /.
4. 10 . 0,7 . 10 0,4 λ=589 , .
5. . , φ = 410 : λ1 = 6563 Ǻ λ2 = 4102 Ǻ? , (400 700 ) kmax=12
6. , . , 10 % . α, , 12 % , .
7. , =1
8. , . .
9. 92U235 220 . , 220 92U235 25%?
10. t = 5 30%. .
11. λ= 500 . . dmin , n=1,4
12. , , 500 1 , λ=0,6 ?
13. . dmin . a 27 /.
14. 4,08 . , , 7,2∙105 /c?
15. T1=500 . 2 , n=5 ?
16. l=10 d=5 150 . I1=5. , , , I2=1A.
17. V= 20 /. , x1 = 12 x2 = 15 , ∆φ= 0,75π. λ t = 1,2, =0,1 .
18. , , 6 8,7 3/4 π. =10-2 . λ V ? , , 0,5 .
19. 0,1 25 . , , 5 . .
20. + 2∙10-7 . . , , , .
21. ℓ=20 . a = 10 Q = 40 , F = 6 . τ .
22. Q = 40 τ = 50 /. , , , .
23. ℓ τ =10 /. φ, , ℓ.
24. , , E = 600 /. q = 0,8∙10-18 . r .
25. U, , υ1 = 106 /, n = 2 .
26. Q1= 6 Q2= 3 d= 60 . , ?
27. Q1 = 50 . , Q2 = -2 , r1 = 10 , r2 = 20 c. Δ .
28. Q1 = 4 Q2 = -2 , = 0,1 . 1,2 Q = 50 1 2.
29. ℓ = 2 , . 1:2. . q = 610-6 600. m .
30. q1 = 6,710-9 q2 = 13,310-9 r1 = 40 . , r2 = 25 c?
31. d Q1 = 9Q Q2 = Q 8 . r , E ?
32. Q1 = 30 Q2 = 10 d = 10 . E φ , , Q1 r1 = 12 Q2 r2 = 6 .
33. ℓ = 20 τ = 0,1/. E , , = 20 .
34. R = 10 - τ = 0,2 /. E , , .
35. Q = 25 , R = 1 , σ = 0,2 /2. F, , r = 10 .
36. Q1 = 0,1 . , , , . Q2 = 10 . . F, , R = 10 .
37. R1 = 2 R2 = 4 , τ1 = 1 / τ2 = 0,5 /. . E , r1 = 1 , r2 = 3 , r3 = 5 . E r.
38. q1 = 20 R = 15 , q2 = -20 . E , rA = 20 rB = 10 .
39. 10-7 8 . , , , , 5 .
40. S = 100 2 , . Q1 = +100 , Q2 = -100 . F , : 1) r1 = 2 ; 2) r2 = 10 .
41. , τ =30 /. = 20 r =1 . , β = 300 , .
42. , . σ1 = 310-8 /2, σ2= -510-8 /2, σ3 = 810-8 /2. , . , .
43. (ε= 2). d = 8,85 . , σ' 0,1 /2.
44. (=7). d = 5 , U = 1 . : 1) E ; 2) ; 3) ' .
45. (1 = 7) d1 = 1 (2 = 2) d2 = 0,5 . : 1) E1 E2 ; 2) D, U = 500 .
46. U1 = 500 . S = 2002, d = 1,5 . (ε = 2). 1) U2 . C1 C2 ; 2) , .
47. d = 1 , r1 = 0,5 , r2 = 1,5 . U=1.
48. r1=5 r2 = 5,5 . (= 2,2). : 1) C ; 2) , , .
49. U = 300 . , (= 7).
50. U = 9 . C1 = 3 C2 = 6 . : 1) Q1 Q2; 2) U1 U2 .
51. R1 = 20 R2 = 50 Q = 100 . , .
52. U1 = 500. S = 200 2. d1 = 1,5 . d2 = 15 . W1 W2 . : 1) ; 2) .
53. (=7). 50 2. σ' , 1 .
54. E0 =700 / (ε = 7). : 1) E ; 2) D ; 3) ; 4) σ' .
55. : d1 =0,2 d2 = 0,3 . U = 300 . E1 E2 Δφ1 Δφ2 .
56. (= 3) R = 5 ρ = 10 /3. , .
57. C1 = 3 C2 = 6 ε = 120 . Q1 Q2 U1 U2 , : 1) ; 2) .
58. E0 = 700 / (ε = 7) d = 1,5 200 2. : 1) σ' ; 2) , .
59. , , 1 . 150 2, 6 . 400 .
60. , . ε = 10 , r = 2 . : φ = 5 , φ = 25 . R = 3 .
61. j l = 10 , U = 6 .
62. 30 , 0,5 , 12 60 16 . q, .
63. , . R=5 , : r1=r2=r3=1 , ε1=15 , ε2=13 , ε3=18 . I.
64. (ρ1 = 10-6 ∙) 1 (ρ2 = 0,4 10-6 ∙) 1 . . 2 . E1 E2 .
65. R = 20 ∆t = 2 J0 = 0 J = 6 (.). Q1, , Q2 - , Q2/Q1.
66. R1 = 8 J1 = 0,8 , R2 = 15 , J2 = 0,5 . J.. .
67. ε = 12 , J.. 5 . Pmax , ?
68. .. R1 = 100 , R2 = 50 , R3 = 20 , ε1 = 2 . I3 = 50 , . ε2. .
69. , R1 = R4 = 2 , R2 = R3 = 4 , , ., ε1=10 , ε2=4 . .
70. V = 6 3 t = 1 Q = 216 . E .
71. ε = 80 , r = 5 , P = 100 . J , U, R.
72. , (.), ε1 = 130 , ε2 = 117 , R1 = 0,5 , R2 = 0,3 , R3 = 12 . .
73. Ha . . 10, J1 = 20 A, J2 = 30 A. , J1 J2 M1, M2 3. M1A = 2 c, 2 = 4 3 = 3 .
74. , (.), I1 = 30 I2 =40 . d 20 . , , d.
75. J1 = 20 A J2 = 30 A . d 10 . , r = 10 .
76. , , , R = 4 . ℓ =20 , J = 10
77. R = 10 , J = 1.
78. , . 5. , , H 41 /.
79. , J = 5 , . , , . r = 10 .
80. J = 50 ( ) r = 10 . O , , - , .
81. , . = 20 /. , . .
82. ℓ = 10 , I = 20, = 0,01 . α I, F = 10 .
83. , = 10 , I = 100 . . F, ℓ = 1 .
84. R = 5 = 2/. α = 60 . I = 4 . , .
85. d = 20 , . I = 10 . , , . ( 20 ).
86. , 1000 ,
, . 1,1910-3 . :
1. R ,
2. T ,
3. L .
87. = 100 . υ , h 20 , R = 5 .
88. ℓ = 1 . d 1 . F = l . I .
89. = 0,1 E = 100 /. , , . υ .
90. d = 5 ( ) d1 = 0,2 . , J = 0,5 .
91. = kt, k = 10 /. , = 1 t2 t1 = 2 ? , S = 1 2. 30 . 20.
92. R = 20 , J = 50 , = 103 /. φ = 30. .
93. = 0,5 n = 10 -1 ℓ = 20 . . U .
94. , 80 d = 8 , 6,03∙10-2 . 1800 0,2 . , ,
95. m = 5 , . ( = 0,2 ) , . Q, , , .
96. R = 20 . t= 0,1 J 0,95 . L
97. 50 . ℓ = 50 . m , .
98. 9Q Q l=50 . Q1 , , . Q1, . Q1 ?
99. Q1=Q2=Q3=1 . Q4 , ?
100. F, q =1,7∙10-9 , r0 =5 , , Q=3∙10-7 .
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