,
1
2
3
4
5
6
7
8
9
10
...
17
16 25
2 -
180
, . I1 = 1 A, ?1 =30.
-1
( )
, ,
12 (2)
-
,
-
750R
1
2
3
4
5
6
7
8
9
10
...
17