: , , :
.
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()
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:
, : 
,
R- ,; r0- ,.-----------------------------------------------------------------------------------------------------------------------------
1- ( ):
: 
I = 0.
:
I1+I2+I3-I4-I5=0
, , ,
I1+I2+I3=I4+I5
---------------------------------------------------------------------------------------------------------------------
2- ( ):
.
---------------------------------------------------------------------------------------------------------------------
.
1. .
2. , " + ", " - ".
3. , " + ", , " - ".
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:
,
- ,
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| 1- 2- . |
.
, , , :
- ()
() (∆) .
- , , : 
,().
:
- ;
- ; ∆ - .
| : I=10 () U=24 () E=25,6 (B) t=30=180 | :
1. :  =
2. :
3. :
4. :
  
5. :
 =
6. :
 =
7. :
 
|
Au; A; ∆A;  U; Pu; P; ∆P-?
|
------------------------------------------------------------------------------------------
|
|
|
7.
, , .
| : t=40 =() R=3 () Q=720 ()=() | :
:
 =
:
=
|
| U=?; I-? |
