U = R/I
U = I/R
I = U/R
R=I/U
38 ():
..=const
39 ():
.
40 ():
,
41 ():
42 ():
, : , . .
:
U=200, R1=50 , R2=20 , R3= 100 , R4=30 , R5=50 .
43 ():
1. =const
A.
B.
C.
D.
44 ():
.
A.
B.
C.
D.
45 ():
A., .
B. , .
C. , , .
D., .
46 ():
A.
B.
C.
D.
47 ():
, , , .
A.
B.
C.
D.
48 ():
:
A.=q/t
B.=I/S
C.=dl/S
D.=1/R
49 ():
, , , .
A.
B.
C.
D.
50 ():
=const
A.
B.
C.
D.
51 ():
:
|
|
|
A.
B.
C.
D.
52 ():
A.
B.
C.
D.
53 ():
, : , . .
:
U=127 , R1=, R2=2 , R3= 10 , R4=3 , R5=5 .
54 ():
1= 100 , 2 = 150 U = 220 .
1. R1 = 484 ; R2 = 124 .
2. R1 = 684 ; R2 = 324 .
3. R1 = 484 ; R2 = 324 .
55 ():
?
1. 0.
2. 90.
3. -90.
56 ():
?
1. .
2. .
3. .
57 ():
. 10 . ?
1.10 .
2. 17,3 .
3.14,14 .
4. 20 .
58 ():
?
1..
2..
3..
59 ():
?
1. .
2. .
3. .
60 ():
