1. . 1 .
2. a ( ) I :
- . ;
- ;
- 5 45. . 2.
- . b , . 2.
1
2
I, | a | F, | |
1. . 2 (9) .
2. , , .
3. (2) B .
4. D FA D , .
1. , .
2. .
3. ?
4. ?
11
1. :
- 1 .
- 1 .
- .1 .
2. :
- m.80 .
- l...3 .
- a18 .
- b...13 .
- N50
- α..50˚
6
: , .
1 2, (. 6.1). 1 I 1, , ( ). 2, 21, I 1.
|
|
2 I 2 ( . 6.1), 1 12.
, () , (), 2, N 2,
Y21 = 21 N 2 = L 21 I 1. (6.1)
, , 1
Y12 = 12 N 1 = L 12 I 2. (6.2)
L 12 L 21 - . -- , , , , . , , , m, .
L 21 = L 12.
Y - Y11 Y22 Y12 Y21, - . - , , :
Y = Y11 + Y22 (Y12 + Y21). (6.3)
, , - L :
Y = LI. (6.4)
(6.1) (6.4)
L = L 1 + L 2 2 L 12, (6.5)
L 1 L 2 .
, ,
, ,
. (6.6)
, , . 2
Y21 = N 221 = N 2 B 1 S 2, (6.7)
N 2 , B 2 , , ; S 2 , 2.
(6.1) (6.7),
. (6.8)
1
, (6.9)
r 1 .
(6.8) (6.9)
, (6.10)
r 2 .
, , . , , .
(. 6.2) 1, 2 , 3 4. , .
|
|
, , (. 6.3). 1, 4 3, 5, PQ, PV. U , UL 2.
= U 0cosw t. R, . 1 (, (. 6.4))
, (6.13)
R , ; R 1 , ; L 1 , ; w , /.
(6.13) (6.6), 2
,
. (6.14)
:
1) R 1 + R >> w L 1;
2) R 1 << w L 1.
, , R >> R 1, ,
E0 = ,
.
n .
E21 U ,
. (6.15)
, R ( PQ), . . w L 1 >> R 1, (6.14)
.
L 12 = L 21 . , , ,
(6.16)
(6.17)
E12 , ; L 2 , .
. (. 6.5).
, . 6.5, , (. (6.5))
L ¢ = L 1 + L 2 + 2 L 21, (6.18)
, . 6.6, ,
L ² = L 1 + L 2 - 2 L 21. (6.19)
(6.18) (6.19)
. (6.20)
R 1 R 2 << R , ,
,
I , , .
R >> w L 1 w L 2,
U = IR. (6.21)
w L 1 w L 2 >> R 1 R 2,
UL = I w L, (6.22)
UL , ; L , .
(6.22) (6.21)
. (6.23)
(. 6.5) (6.23)
, (6.24)
UL ¢ . 6.5, , UL ² . 6.5, .
(3.20) (3.24)
. (6.25)
1
R
1. , . 6.4. 1, 4 , 3, 5 (. 6.3).
2. PQ.
3. . , 7 , 10 .
4. .
5. a = 15, E12 = f (x). . 6.1.
6. (6.15) (6.16) :
|
|
.
. 6.1.
7. L 12 = f (x).
6.1
a, | E21, | L 21, | E12, | L 12, | L 12, | L 21, |
2
R
1. , . 6.4. 1, 4 , 3, 5 (. 6.3) R.
2. PQ.
3. . , 7 , 10 .
4. .
5. , . . 6.2.
6. (6.17) . 6.2.
7. L 12 = f (x).
6.2
x, | E21, | U , | L 12, |
... |
3
1. 2, 6, 5, 7.
2. 3, 4.
3. . , 7 , 10 .
4. .
5. U UL 10 20 ( ""). . 6.3.
6. , . 5. . 6.3.
! .
6.3
n, | ||||
UL ¢, | UL ², | UL ¢, | UL ², | |
8. (6.25) L 12 a = 0 .
4
1. PQ PV. 1 .
2. 7 . n 5 20 , E12 = f (n), - . - . 6.4.
6.4
n, | E, | |
3. n = 10 , 3 8 1 , E12 = f (U ). . 6.5.
6.5
U , | E, | |
6. . 6.4 6.5 E12 = f (n) E12 = f (U ).
1. .
2. ?
3. .
4. ?
5. ?
|
|
6. .
7. ?
8. ?
9. ?