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18.




1. . ?

2. ? ?

3. . .

4. , 110 , 220 ? .

5. 2 3 , ? ?

6. , ? ?

 
 

1. 1 , R 1=3 , R 2=6 , R 3=4 . .

2. R 1 = 2 , R 2 = 3 , R 3 = 5 , 2. .

3. , . 3, R 1=2 , R 2=10 , R 3=15 , R 4=1 ?

4. , . 4, R 1=6 , R 2 = 3 , R 3 = 5 , R 4 = 24 .

5. , 5, R 1 = 60 , R 2 = 12 , R 3 = 15 , R 4 = 3 ?

6. R 1 = 1 , R 2 = 2 , R 3 = 3 , R 4 = 4 , 6. .

1. , . . 1, D, R 1=2 , R 2=5 , R 3=20, , R 4=5 , R 5=10 .

 
 

2. R 2 , R 1 = R 2 = R 5 = R 6 = 3 , R 4 = 24 , R 3 = 20 .

3. 3, R =1 .

4. , 4, 1 .

5. , 5, R = 1 .

6. , 6, R 1=1/2 , R 2=3/2 , R 3= R 4= R 6=1 , R 5=2/3 .

 
 

7. , 7, 2 .

8. 8, R 1= R 2=0,5 , R 3=8 ,

R 4=12 , R 5= R 6=1 , R 7=2 , R 8=15 , R 9=10 , R 10 = 20 .

9. R . 9, R 1= R 5= R 8=12 , R 2= R 6= R 7=6 , R 3 = 3 , R 4 = 24 .

10. , 10. R, .


1. , 1. R, .

2. , r (. .2).

3. R , r. (. .3).

4. R , r (. .4).

5. R , r (. .5)..

6. R , r (. .6).

7. R , r (. .7).

8. 12 (. .8). .

 






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