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. , , .
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m1 m2 - ; r - , ; k - , .
f , .
, - .
, , , . XIX :
() H :
XIX , M. H, B, , , . , . "", "", , , , : , - H , , () . "" , "" . " " , " ", .
B = μaH [Tesla] μa = B/H [Hn/m]. |
(1) |
, . , , (. 1 )). , , .
, ,
.
V
. |
(1) |
(1) [J] = [M/V] = 2/3 = /.
. |
(2) |
k .
, , , B0 , , B,
, |
(3) |
m 0 - ; m m =1+k - .
m . , k <0 m <1, .. . , m =0,99983.
k >0 m >1. , 1,00036.
, .., , . , .
m A B (. 2). f f=mH , H - .
m AB
, |
(4) |
a - H . , AB, () F,
, |
(5) |
.. .
m i.
, m (. 3 )).
(4),
. |
(6) |
, , m (. 3 )). , i dA = id = idN, - , .
m , , , ,
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(7) |
A1 = A2 ,
. |
(8) |
, () . , , . (8) ,
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(9) |
. , , () , , , .
, . , , , . , , .. , (9).
.
m 1 m 2 (. 4). , S , .. 1 = 2 .
Q - , BcosQ - .
- 1= B1ScosQ 1= 2= B2ScosQ 2
B1cosQ 1 = B2cosQ2, |
(10) |
.. ,
., H1 H2 B1 B2 (. 4 )). abcd , l (. 4 )). , .. :
:
H1sinQ 1 = H2sinQ2. |
(11) |
,
, .. .(10) (11), , .
. |
(12) |
(12) , (m 1/m 2=1000), , (Q 1=87 ), 1 , .. , .
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