. 2 (. 2, ) 3 .
, . . . 1, ( ) .
, , 4 (. 2,). I I, R. I . , , . . . . RA R I, , :
I = I (R+R)/R = In (105)
n = I/I = (RA + R)/R . 10. , I, n , I,
R = RA/(n-1) (106)
( 50 ), . , . ( ) , , ( ). 45, 75, 100 150 . , . , . , . (0,02; 0,05; 0,1; 0,2; 0,5). .
, (, , .). - .
. 2. (, ) (, )
. U, - , 2 (. 2, ) , . . 1 3.
, . .
4 (R) (. 2,). Uv U, Rv.
, Uv, , , :
U = (Rv+R)/Rv * Uv = nUv (107)
n = U/Uv=(Rv+R)/Rv , U Uv, , . . .
, U, Uv, R=(n 1) Rv.
. , , , . , .
. . , ( ). U1 U2 (. 3, ) . U1/U2 = (R1+R2)/R2 = 1 + R1/R2. 10, 100, 500 . . ,
. 3.
(. 3,). , Rv (, , ), , , .
. , . . , , . . , .
. 1 (. 4, ) , . , : , , 2.
( . 4, ).
, , , , , U1 U2 w1 w2 , . .
U1/U2 = w1/w2 = n (108)
, w1 w2 , , .
U1 U2 n.
, , , .
.
3 (. 4,) , .
. 4. () ()
; , 4.
. 4, .
, , , , , I1 I2, , w1 w2 , ..
I1/I2 = w1/w2 = n (109)
, w1 w2 , I1, I2. I1 I2 n.
, , , I1 .
.
. . . (. 5). 3 2 4, , 1, .
. , , , , , . . . , . . , , .
: ( U1/U2 I1/I2 180). . -
. 5.
, (, , .). . (0,2; 0,5; 1 . .) .
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