1. 4 540. 540 U↑ .
540 : 30 , 1 .
2. ( 4), 540 (. 7). U = 20...25 B ( ). . 1.
, . 1 .
| U, | I, | P, | Z, | R, | X, | L, | 
| 
| U, | U, | |
1
3. 540 , , ( 3) ( 4) = 40−60 ( ).
540 : 75 , 1 .
I = I ( . 1), . 2.
2
| U, | I, | P, | Z, | R, | X, | RR, | XC, | , | U, | UR, | U., | 
|
. 2 .
4. 540 , .
. 1 , .
540 15 , 2,5 .
U = 12...14 ( ) (C p50) < C < (C p+130) ( ).
. . 3.
3
| C, | I, | P, | XC, | UC, | U, B | U, | U, |
| 
|
.
. 3 : X =f (C), XC = f (C), I = f (C), cos j = f (C), j = f (C), : U = f (C), U = f (C), U = f (C), UC = f(C).
.
|
|
|
C = Cp, C < Cp C > Cp.
:
,
, ;
(. 1, 2);
(. 3);
C < Cp, C = Cp C > Cp;
.
1. ?
2. , , .
3. .
4. , . ?
5. ? ?
6. ? .
