, . ( , , , ) , . (. 5.20) .
. 5.20 |
- p n - ( - ). , :
U x = U . = N lg(I x / I 0) = N lg(U x / I 0 R 1) =
= N lg(U x) + N lg(I 0 R 1) = N lg(U x),
U x ; U x ; U . ( ); I x ( , , ); I 0 p n - ; N ; R 1 , I 0 R 1 = 1 . (. 5.20) ( 7 ), . , , , (46 ). . . , .
. 5.21 | . 5.22 |
- () (. 5.21). - . 5.21 . 5.22.
- .
, U . , . , , U = − R / R x.
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R . , , R = R, U = − R / R x; , R = R /2, U = − R /2 R x ( , ), R R = R /3, R = R /4. ., U, , 3, 4 . .