10 . , , .
.
:
- ;
- ;
- ;
- , .
3- 4 . , , , .
, , , ; , .
.
, , .
.
1
. B : ( ), R1, R2, R3, R4, U, I P .
:
- ;
- , , I1, I2, I3, I4.
, . . 1.
o | R1, | R2, | R3, | R4, | U,I,P | |
U= 20 B | ||||||
I= 5 A | ||||||
P= 50 | ||||||
U= 100 B | ||||||
I = 2 A | ||||||
P = 48 | ||||||
U= 40 B | ||||||
I= A | ||||||
P = 120 | ||||||
U= 40 B |
1
. 1 . 2
. 3 . 4
. 5 . 6
. 7 . 8
. 9 . 10
2
c , :
- Z - , ;
- I - , A;
- U - , , B;
|
|
- - ;
- S - , B×;
- P - , ;
- Q - , .
, , ; , , . 2. , - U - , , , c . .
2
R1, | R2, O | XL1 | XL2 | U, I, S, P, Q | ||
U= 80 B | ||||||
I = 2 A | ||||||
10 | S= 450 B×A | |||||
U= 60 B | ||||||
Q= 120 | ||||||
1= 4 A | ||||||
U= 200 B | ||||||
P= 256 | ||||||
S= 180 B×A | ||||||
Q= 128 |
. 11 . 12
. 13 . 14
. 15
3
. 16 c . R . . . B , . , (, ) . . 3
. 16
3
R, | ||
U1=220 B | ||
I3= 22 A | ||
I2= 38 A | ||
U2=127 B | ||
I1=12,7 A | ||
U1=380 B | ||
I3=38 A | ||
I2= 66 A | ||
U2=220 B | ||
I1= 2 A |
4
. U1= 220 B. ( ) (. 17).
. 17
, :
- U2;
- k;
- w1 w2 ;
- I2;
- 2, .
. . 4.
4
U, k, w, I, P | U, k, w, I, P | ||
k = 0,1; w2 = 5000; | w1, = 500; w2 = 5000; | ||
I2 = 1A | 2 = 2200 | ||
k = 0,1; w2 = 5000; | w1, = 500; k = 0,1; | ||
P2 = 2200 | I2 = 1A | ||
U2 = 2200B; w2 = 5000; | w1, = 500; k = 0,1; | ||
12 = 1A | 2 = 2200 | ||
U2 = 2200B; W2 = 5000; | U2 = 2200B; w1, =500; | ||
2 = 2200 | 2 = 2200 | ||
w1, = 500; w2 = 5000; | U2 = 2200B; w1, =500; | ||
I2=1A | I2= 1A |
|
|
1 . : ; R1,R2,R3,R4; U, I, P.
: 1) R; 2) , ,I1, I2, I., I4.
:
R1 = 3
R2 = 4
R3 = 2
R4 = 3
U = 20
_________________________ 1.
: R; I1, I2, I3, I4.
1. .
R2 R3 ,
R2,3 = R2 + R3 = 4 + 2 = 6 (O)
(. 2):
2.
R1 R2,3 , c R1,2,3 :
()
(.3):
3.
R1,2,3 R4 , :
R1,2,3,4 = R1,2,3 + R4 = 2 + 3 = 5 O.
2. :
I4 = I1,2,3 = I1,2,3,4 = U / R1,2,3,4 = 20 / 5 = 4 .
1,2,3:
U1,2,3 = I1,2,3,* R1,2,3 = 4 * 2 = 8 B.
U1,2,3 = U1 = U2,3 = 8 B.
R1, R2 R3:
I1 = U1 / R1 = 8 / 3 = 1,67A;
I2,3 = U2,3 / R2,3 = 8 / 6 = 1,33A;
I2 = I3 =I2,3 = 1,33 A
2 .
2.
- ;
- , ;
R , ;
XL , ;
Xc , ;
Xp = (L - c) , .
:
:
-
-
-
-
:
.
, :
900:
900:
, . , . . .
, , R, XL Xc :
:
R1 = 2
R2 = 4
XL1 = 3
X.L2 = 5
XC1 = 10
XC2 = 6 1.
U = 20 B
: Z; I; ; P; Q; S. .
1. Z:
2. :
3. :
4. P, Q S :
5. :
|
|
6. .
: U = 4B/c, I = 0,5A/.
2.
, . 900 , .. , e . 900 , .. , . . . . .
:
.2.
3 .
.
.
C .
:
( 3, .21) :
4 .
.
:
: