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(.8.4) . R1 U R.. .

U.= .

, R 2= R 1êê R ..

(.8.5)

U. = .

- (.8.6) . R 1= R 2 R .= R, U=(U2-U1) .

. .8.7, 8.8.

.

R 1= R 2= R

U=- (U.1+U.2+...+U.n) - ;

- .

R ., .

 
 

( ) U.1, U.2 .. , U.1 U.2.

, .8.9,

,

t = R1C. - .

(.8.10)

 

U =- R . C =-t .


. .8.11, .8.11, , .

(.8.12), U =- (.8.13) - - R1, R2, R3 C1, C2, C3, , w0 = . , .. R 1= R 2= R, C 1= C 2= C R 3= . C3=C1+C2=2C, w0= .

 
 

 

. (.8.14) . t = t n= R . C×ln(1+ ), R 1= R 2 t = t = R . C×ln3, =(t + t )=2 t , Q = . t = R . C R 1, R 2, , .

(.8.15) . , R 1, R 2, C 1, C 2, - , f 0= - - . R 1= R 2= R C 1= C 2= C ( ) f 0= . R . R 0 k u.

- () , , , - .. .8.16. , C VT. C . R 3 t = R 3 C, () . . C .

. U U . .8.17, , . ( ) , ( ) (.8.17,). . DU = U - U > 0
U = U .m, DU = U - U < 0, U =- U .m.

. U U (.8.17,). .

(). (.8.18,). R 1, R 2, . .8.18, ,

U ¢= U

U ²= U


U = U ¢- U ²= ,

U - , R1 R2.


 

 

1. (.8.4) R1= 10 R .=20, 100 270 U 0 1000 U =12 .

2. U - (.8.6) R1=R2 = R =10 R .=10 20 U 1 U 2 1000 . .8.2.

3. U (.8.7) R1=R2 = R =10 R .=20, 50, 100 U 1 U 2 1000 . .8.2.

4. t R1= 10; C .=5 10 ) (R .=10 50 , C =10 5).

5. f 0 (.8.13) R =24 C =1,1 .

6. (t) (t), () (.8.14) C = 6,8 R .=16 .

7. (.8.15) R=____ C =_____.

: .

 





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