, .
. , . , . , (, , , ) , , , ..
: (, , ), . , , ( , , ..), . . , . , , , , ..
, , : , , .
1. .
(. 1.14) :
1) ;
2) R;
3) ;
4) ;
5) .
6) , .
.
1
I, | r, | R1, | R2, | R3, | R4, | R5, | R6, | R7, | ||
1.14 | 35,82 | 0,67 | 3,5 | 4,5 |
:
1. .
. 1.14
2. , , :
|
|
I =
E=I*r=38,82 ()*0,67 ()=26,01 ()
3. , :
R1,2=R1*R2/(R1+R2)=2*6/(2+6)=1,5 ()
RA=R1,2*R3/(R1,2+R3+R4)=1,5*3,5/(1,5+3,5+10)=0,35 ()
RB=R3*R4/(R1,2+R3+R4)=3,5*10/(1,5+3,5+10)=2,33 ()
RC=R1,2*R4/(R1,2+R3+R4)=1,5*10/(1,5+3,5+10)=1 ()
RB,5=RB+R5=2,33+4,5=6,83 ()
RC,6,7=RC+R6,7=1+4,2=5,2 ()
R6,7=R6*R7/(R6+R7)=14*6/(14+6)=4,2 ()
RB,C,5,6,7=RB,5*R6,7,C/(RB,5+R6,7,C)=6,83*5,2/(6,83+5,2)=2,95 ()
R= RA+RB,C,5,6,7=0,35+2,95=3,3 ()
4. :
= = = 6,55 ().
5. U:
U=I*R=6,55*3,3=21,62 ();
6. :
IA=IB,C,5,6,7=I=6,55 ();
UB,C,5,6,7=IB,C,5,6,7*RB,C,5,6,7=UB,5=U6,7,C=6,55*2,95=19,32 (B);
IB,5=UB,5/RB,5=19,32/6,83=2,83 ();
I6,7,C=U6,7,C/R6,7,C= 19,32/5,2=3,72 ();
IB=I5=IB,5=2,83 ();
IC=I6,7=IC,6,7=3,72 ();
I5*R5 - I6,7*R6,7= 2,83*4,5 3,72*4,2= 12,74 -15,62 = 2,88
I4=2,88/10=0,29 ();
I1,2= I4+IB= 0,29+2,83= 3,12 ();
I3=I6,7+I4=3,72+0,29=4,04 ();
U6=U7=U6,7=I6,7*R6,7=3,72*4,2=15,62 (B);
I6=U6/R6=15,62/14=1,12 ();
I7=U7/R7=15,62/6=2,61 ();
U1,2=U1=U2=I1,2*R1,2=3,12*1,5=4,68 (B);
I1=U1/R1=4,68/2=2,34 ();
I2=U2/R2=4,68/6=0,78 ().
2:
I,A | I1,A | I2,A | I3,A | I4,A | I5,A | I6,A | I7,A |
6,55 | 2,34 | 0,78 | 4,01 | 0,29 | 2,83 | 1,12 | 2,61 |
7. :
E*I=I12*R1+I22*R2+I32*R3+I42*R4+I52*R5+I62*R6+I72*R7+I*r;
:
26,01*6,55=2,342*2+0,782*6+4,012*3,5+0,292*10+2,832*4,5+1,122*14+2,612*6+ +6,552*0,67;
170,36=10,95+3,65+56,28+0,84+36,04+17,56+40,87+4,38;
170,36()=170,57().
.
8. , . , .
, , , . . - =0.
, R1, R4, R7 r . :
= -I*R1; = -I*R4; = -I*R7; = -I*r; = +.
: I =
I = = = 1,39 (A);
; =0-(1,39*2)=-2,78(); =(-2,78)-(1,39*10)=-16,68(); =(-16,68)-(1,39*6)=-25,02(); =(-25,02)-(1,39*0,67)=-25,95(); =(-25,95)+26,01= 0,06()
. , , , , .
R, | |
-2,78 | |
-16,68 | |
-25,02 | |
18,67 | -25,95 |
26,01 | 0,06 |