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_____ _______________ 200__ .









2002 .

 

:


.


1.    ..................................................................................... - 3

2.    .............................................. - 4

3.    .......... - 5

4.    .............................................................................................. - 6

5.    .................... - 7

6.    - 8

7.    ............................................................................... - 10

8.    ............................... - 11


1.   

. . , - , , , , , , .

:

Ø     ;

Ø     .

. .

, .. .

, , . , , . , .

2.   


1 2 - . R1 R2 , , 1 . RC-, R.

:

- , m , W - .

:


1.      R , , S=10 mA/, w0=106 /, W=104 / .

2.      . Um=0,1 , m=0,5.

3.      R , 0,9, S=10 mA/, w0=106 /, W=104 / .

4.      . Um=0,1 , m=1.

3.    ר


R , , S=10 mA/, w0=106 /, W=104 / .

.3 - . R , . RC- , R.

:

(1)

Um, w0 , m , W - .


:

=0,318*S*R, (2)

S .

(2):

R=1/(0,318*S*)


, :

R=1/(0,318*0,01*1)=314 ()


R :

1/w0<<R*<<W0, (3)

w0 , W0 - .


(3) :

1/1000000<<314*<<1/10000,

314*=0,000001,

=3,18*10-9=3,18 ().

4.   

. Um=0,1 , m=0,5.



- , w0-W, w0, w0+W mUm/2, Um, mUm/2, w0, W - , m (. 4).

:

=Um/(m*Um)

:

Um= *m*Um=1*0,5*0,1=0,05 ()

:

m=0,1;

mUm/2=0,5*0,1/2=0,025 ()

, :

Um, B











w, 105 /

0 w0 W w0 w0+W


.4

 


Y , .

(3), , W (. 5)

Um,











w /

0 W=104

.5



5.           ר

 

R , 0,9, S=10 mA/, w0=106 /, W=104 / .

. 6 - . RC-. R .

:

=cos[(3p/(S*R))1/3], (5)

S .


R (5):

arcos =(3p/(S*R))1/3; Þ R1/3=(3p/S) 1/3/arcos; Þ

R=((3p/S) 1/3/arcos)3. (6)


(6):

R=((3p/S) 1/3/arcos)3=((3p/0,01)1/3arcos0,9)3=10272 ().


R :

1/w0<<R*<<W0, (7)

w0 , W0 - .


(7) :

1/1000000<<10272*<<1/10000,

10272*=0,000001,

=9,73*10-11=97,3 ().



6.   


. Um=0,1 , m=1.

- , w0-W, w0, w0+W mUm/2, Um, mUm/2, w0, W - , m (.7).

:

=Um/(m*Um)

:

Um= *m*Um=1*0,9*10=9 ()


:

m=1;

mUm/2=1*10/2=5 ()

, :

Um, B











w, 105 /

0 w0 W w0 w0+W

.7



Y , .

(7), , W (. 8)

Um,










w/

0 W=104

.8

7.   


, .

, .

8.   

 

1.     ( . .. .: , 1982)

2.     .. , 2- .: , 1988

3.     .. , , 2- .: . . .: , 1988