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4




3.64 1 = 2 2 = 5 U 1 = 100 U 2 = 150 . , .

3.65 = 100 . , , .

3.66 1 = 5 2 = 8 = 80 . Q 1 Q 2 U 1 U 2 .

3.67 R = 10 . d = 2 . U = 80 . Q : ) ; ) .

3.68 R 1 = 5 R 2 = 10 Q 1 = 40 Q 2 = -2 . W, , .

3.69 : d 1 = 0,2 d 2 = 0,2 . U = 300 . .

3.70 S = 200 2 U = 2 . d = 2 . . W w .

3.71 R 1 = 8 R 2 = 20 , , q 1 = 40 q 2 = 20 . ? , .

3.72 R 1 = 10 R 2 = 30 , . q 1 = 10 . , ? , .

3.73 C 1 = 4 , U 1 = 10 , U 2 = 20 C 2 = 6 ( ). ?

3.74 , C 1 = 2 C 2 = 0,5 . U 1 = 100 U 1 = 50 .

3.75 , C 1 = 2 C 2 = 0,5 . U 1 = 100 U 2 = 5 0 .

3.76 . r = 4 . I = 0,3 , U = 120 . R . , , , .

3.77 , e = 600 , l = 1 . = 5 . , d = 0,5 .

3.78 R 1 = 8 I 1 = 0,8 , R 2 = 15 I 2 = 0,5 . I. . .

3.79 e = 24 . , , Imax = 10 A. Pmax, .

3.80 e = 12 U = 15 . , Ri = 10 .

3.81 U = 800 = 10 . , 10% ?

3.82 U = 220 I = 5 . , , , R 6 .

3.83 t = 20 c R = 5 Q = 4 . . R = 5 .

3.84 (R = 100 ) I = I0e , I 0 = 20 , a = 102 1. , t = 102 .

3.85 R = 10 t = 50 I 1 = 5 I 2 = 10 . Q, .

3.86 I = I0sin . Q, t, , I 0 = 10 , -1.

3.87 t = 10 Q = 40 . <I> , R = 25 .

3.88 t = 8 R = 8 Q = 500 . q, , .

3.89 Q, t = 10 c R = 10 , , , I 1 = 10 I 2 = 0.

3.90 I = I 0 e . , r = 20 , . a 2×102 - 1.

 

4.1 , . 6. . .

4.2 2. , (. 7).

 

 

6 7

 

4.3 ( ). (. 8). .

4.4 , , . 9, . . .

 

 

8 9

 

4.5 . (. 10). .

4.6 , , ( ). , (. 11).

 

10 11

 

4.7 , , . 12, . . .

4.8 . , (. 13). .

 

 

12 13

 

4.9 , . (. 14), . .

4.10 , . 15. , .

4.11 I 1 = 10 A I 2 = 12 A. a = 10 . , r 1 = 8 r 2 = 6 .

 

 

14 15

 

4.12 , , r 1 = 15 r 2 = 10 .

4.13 , a = 10 , I =20 A. .

4.14 R = 4 d = 10 . I 1 = I 2 = 2 A. , .

4.15 R = 2 , . I 1 = I 2 = 5 A. .

4.16 , , . . , , .

4.17 , . . F, , , .

4.18 ( ) , . . , . .

4.19 , , (B =10 ). , , .

4.20 ( ). . R 20 . F, .

4.21 , . 20 . ( ), . , .

4.22 . ( ) , . .

4.23 /. , , -1. , .

4.24 ( / 2). , , , . /.

4.25 /. -1 , . , .

4.26 v = 106 /. , .

4.27 . / , . , .

4.28 . / , . , .

4.29 ( / 3). -1 , . , .

4.30 . -1 , . , , .

4.31 , . , .

4.32 ( ). , .

4.33 , , . R .

4.34 - , , . .





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