n-p-n p-n-p p-n , .
.7.38 -n- , .
.7.38. -n- ,
, . ( ) , 1 , 2 . , , - . , , n-p - 2, , . .7.39 = Const.
.7.39. -n-
.
p 1 -n 1 -p 2 -n 2 1, 2, 3, , , . p 2, .
.7.40 .
.7.40.
2 . p 2 -. n 1 p 2 3 n 2. , .
.
, .
.7.41 = Const, , .
.7.41.
, , .
.7.42 , , , . , , . . .
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.7.43 = Const.
.7.42.
.7.43.