- (m =1) - , (15.13),
. (15.14)
m 0 , I 1= I 2=1 R=1 . (15.14),
,
() .
. , dl I . (d F=IB d l)
.
(): 1 - , 1 , , 1 :
1 =1 /(∙).
m 0=4p∙10-7 /2, (m=1), = m 0 ,
= /m 0.
- (/):1 / - , 4p∙10-7 .
, , . , Q, v,
, (15.17)
- , .
: , , v ( Q>0 I v , Q<0 - ), , . .15.9 v, ( , -) F . . (. (15.17))
,
a - v .
, . . .
, .
, , . , . , .
, F, , , , :
|
|
.
. v .