1. .
.
) . , , .
PV 2.
. 2.
. 2 . 3
, , PV 2.
(, !) (4)
U ,
IB ,
RA ( ).
RA << RB :
(5)
) . , (. .).) .
. 3.
, , RB . ), R = RB .
RB 1 .
1
/ | U, | IB, | ||||||
RB, | DRB, | RB, | R = RB, | DRB, | RB, | |||
1. 2. 3. 4. 5. |
2. . .
1. (4) (5).
2. Rg. Rg . 1.
3. . 4.
. 4 . 5
PV 2, .
2
V 0 = f (N).
2
U, | ||||||||
N, |
1. , , ?
2. 150 . 30 . , 55 ?
|
|
3. , , .