, .
1. - I1 = I2 = I3;
2. - U=U1 + U2 + U3;
3. - R= R1 + R2 + R3;
4. , -
.
, , .
:
1. -
U = U1 = U2 = U3
2. - I = I1 + I2 + I3
3. , 
- (G)
.
G = G1 + G2 + G3
4. , , . 
1.
2. , , 
; 
.
:
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:
U = 60
R1 = 7
R2 = 12
R3 = 4
: I1; I2; I3 = ?
R2 R3 , R2-3 R1.
R = R1 + R2 - 3
R
=R1+R2∙3= 7 + 3 = 10
I1 = I
= 6U2 - 3 = I∙R2 - 3 - :
U2 - 3 = I∙R2 - 3 = 6∙3 = 18
U2 - 3 = U2 = U3 =18
- ..
:
U=240
R1 = 20
R2 = 120
R3 = 40
R4 = 60
R5 = 30
R6 = 20
: I
1-6 -?
; R4-6 = 10 ;
;
; R2-3 = 30
R=R1+R2-3+R4-6 = 20 + 30 +10 = 60 ;
; 
;
U2-3 =I∙R2-3= 4∙30 = 120 ;
U2 - 3 = U2 = U3;
;
;
U4-6=I∙R4-6=4∙10=40B;
U4-6=U4=U5=U6;
;
;
;
:
E =
20Ri=2
R1 =
9R2 =
6R3 =
12R4 =
1R5 =
2R6 = 1
R4-6 = R4 + R5 + R6;
;
R3-6 = 3 ;
R = R1 + R3-6 +R2 = 9 + 3 + 6 = 18 ;
I=
;
I=I1=I2=1;
U3-6=I∙R3-6=1∙3=3;
U3-6=U3=U4-6;
I3=
;
I4=I5=I6=
;
C . .
Pu=P+0;
EI=I21∙ R1+ I22∙ R2+ I23R3+I42R4+I25R5+I26+I2Ri;
20∙1=12∙9+12∙6+(0,25)2∙12+(0,75)2∙1+(0,75)22+(0,75)21+12∙2;
20=20-
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