, ,

Vab a b.

, AB A B ,

, , , II

+ - + + II

II b a ( )

, . .ab a

, , ab

ab a b

+ . a b - +

( loop ) .

:

" "ab" " , .

. a , a , .abE ! , .

abEiEEEEE + .+ +-+-+-+-+-+- a

+ abi - +

abiV4=iR4V3=iR3V2=iR2V1=iR1Vr=ir-1 :

abiV4=iR4V3=iR3V2=iR2V1=iR1Vr=ir-1 a , a , + + . . :

: "" .

, .V2=iR2V1=iR1Vr2=ir2Vr1=ir1-1-2

, , , .V2=iR2V1=iR1Vr2=ir2Vr1=ir1-1-2

: , , , , " "

:

"" . 1 . 2 . ,

, .V2=iR2V1=iR1Vr2=ir2Vr1=ir1-1+2! + - , +

V2=iR2V1=iR1Vr2=ir2Vr1=ir1-1+2 , , , .

: , , , " "

" .

"

. ?. ?.

. , , , .

. "" .

, .! + - , + V2=2i1=10vVr1=1iV1=1iV4=4iV3=3i-1=-25vVr2=4i

V2=2i1=10vVr1=1iV1=1iV4=4i-1=-25vVr2=4i :V3=3i

. ? 2 .I=1AI=1A Vcd c d , +

I=1AI=1A Vef e f , + 1 .

. , , , 2 , 1 .

(C) * ?

,

. : . .

-

. ,

:. ?

,

! . :

! !

+

, . I1I2I3

I1I2I3 :

. I1I2I3

:I1I2I3

, .

!I1=2AI2=3AI3=1A

: Vef ?I1=2AI2=3AI3=1Aef

e f .I1=2AI2=3AI3=1Aef + : e !

I1=2AI2=3AI3=1A

. - ( , ) .

! ! !!!!

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