2. . 1 2 , R 1 R 2 > R 1. + q - , q - . : E = Er,
e - , .
3. . l R 1 R 2 > R 1, . R 1 + q, , R 2 q. l >> (R 1 R 2), , , , , , t = q / l - t. . s = t /(2 p R 1)= q /(2 p R 1 l), e, (R 1 £ r £ R 2), Er = q /(2 p ee 0 lr). ( 1)
, , , , .
, , . . ( ) . , . , , , .
2.1
2.1, . U,
q 1 = C 1 U, q 2 = C 2 U,...
, ,
Q = å qi = U å Ci,
C = q / U = å Ci. (2.2)
, , . , , .
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. 2.1, . q, ,
U 1 = q / C 1, U 2 = q / C 2.
, . .
.
,
. (2.3)
. , , .
. 2.1, . , (2.2) (2.3).
, , - , . , , , . . I . :
Mn = - f a,
f . , ,
.
, - . ( ). , t : t<<T ( ). , . t ,
,
q - , , μ - /.
I w 0 = ,
(w0- )
.
, :
Wn = f a 2 /2.
, a m ,
.
,
b - , . , , , , .
q ~ a, (2.1), ,
a ~ C. (2.4)
(2.4)
C = a × μ.
- , a - .
, , , .
() , . 0 9. . 0 , 1 1(0,2 ), 2 2(0,5 ), 3 3(1 ), 4 4(1,5 ), 5 5(2,3 ), 6 1, 7 2, 8 , 9 . 2 3. , .
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