, .
1. , .1, R, U, . I4 R4. : ) P1, ) 4? U .
. 1. , . , .
2. R2,3 R2 R3, :
:
, .1,.
3. R2,3 R5 , R2,3,5 = R2,3 + R5 = 6 +4 = 10 .
R2,3 R5 R2,3,5, , .1,.
4. R2,3,5 R4 ,
.
R2,3,5 R4 R 2,3,4,5, , .1,.
5. R 2,3,4,5 R1 , R = R 2,3,4,5 + R1 = 5 + 5 = 10 .
6. I4, R4:
U4 = I4 R4 = 5∙10 = 50 B.
7. U4 R2,3 R5, = /
8. R5:
U5= = 5∙4 = 20 B.
9. R2,3 , R2 R3. R2 R3 R2,3, R2,3 U 2:
U 2 = U4 - U5= 50 20 = 30 .
10. R2 R3:
I2 = U 2/ R2 = 30/15 = 2 A; I3 = U 2/ R3 = 30/10 = 3 A.
, R1:
I1 = I2 + I3 + I4 = 2 + 3 + 5 = 10 A.
11. R1:
U1 = I1 R1 = 10∙5 = 50 B.
12. U, :
U = I1 R = 10∙10 = 100 ; U = U1+ U4 = 50 + 50 = 100 .
13. 1 R1 , .1,.
R'AB = R 2,3,4,5 = 5 .
U 100 , R4 :
=100/(6+4) = 10 .
:
U5= = 10∙4=40 .
R2 R3
U 2 = U - U5=100-40=60 .
R2 R3:
I2 = U 2/ R2 = 60/15 = 4 A; I3 = U 2/ R3 =60/10 =6 A.
|
|
, :
I = I2 + I3 + I4 = 4 + 6 + 10 = 20 .
I = U/ R 2,3,4,5 = 100/5 = 20 .
, .
14. 4 R4 , .1,.
:
R"= R1 + = 5+
U , I1 :
I1=
R2 R3
U 2 = I1 R 2,3 = 6,67∙ 6 = 40 .
I2I3:
I2 = U 2/ R2 = 40/15 = 2,67 ; I3 = U 2/ R3 =40/10 = 4 .
I1:
I1 = I2 + I3 = 2,67 + 4 = 6,67 .