(1)
.. U e IR R .
, , , , .
, , . .
, . 1 e , ABC. R 2, R 3 Ir, , .
, Ae XR 4CA
, (2)
RX ,
R 4 ,
Rr .
Ir = 0
(3)
, AC, 4-12, e .
. 1
: 5555 , , .
e R 2 R 3 Ir, . I 1 = const,
(4)
(3) (4),
(5)
, , . . e = 1,01836 t = 20C. .
:
1. , , , .
2. , .. .
3. , , .