: , G E.
, .. : , , , .. , , . ( , ) . . . , .. .
, , , , . , , j (.1).
:
= f×j, (1)
- , , f- , . , :
, (2)
G- , l - , r - . ( [11, 14]). G E m :
E = 2×(1 + m)×G. (3)
m Dr/r Dl/l. , f, G E.
( ), j , , , j-, (). j0 , :
j = j0×Sin(w0×t + a). (4)
w0 =2×p/T - ( ), - , a - , t - .
:
, (5)
M - , I- , e - .
.. M = - j×f= - f×j0×Sin(w0×t + a) (. 1 4), (5) ,
f = I×w02 f = (4×p2/T2)×I. 6)
.., f , .
, , (. 2).
, . t , n. = t/n. , , , m I , , T. (6) , f = const, :
|
|
I1×w012 = I2×w022 I1/I2 = T12/T22. (7)
I1 I2 - . I m R, I = 1/2×m×R2 I0 . :
I1 = I0 + 1/2×m1×R12
I2 = I0 + 1/2×m2×R22. (8)
I0 (8) (7), I1 I2 :
. (9)
1 2 - . (6) (9), :
. (10)
. f , f = f /2. (2) (10) G:
(11)
m ( c m=0,23-0,31), (2) (11) E.
1. , .
2. 5 .
3. l1 l2. l <l> = (l1 + l2)/2.
4. d .
5. (40 - 100) , 10 . T1. 5 .
6. 5.
1
l1 | l2 | R1 () | T1 (c) | R2 () | T2 (c) | d | ||
1. 2. 3. 4. 5. | m1= m2= | |||||||
<l>= | <R1> | < T1> | <R2> | < T2> | <d> |
7. (11) G.
8. m = 0,29, (3) E.
9. G E .
1. ? ?
2. .
3. ?
4. ? ?
5. G?
6. m?
7. ?
8. w0