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( )

: ,
, . .

́ ( , Oe)  . 1930 [1], (H.C.Oersted).

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1 1 .

, , ,

H = 2 \frac{I} {cl},

  • H ;
  • I ;
  • ;
  • l ,

1 , 5 = 5·(/10) , 1 . 1 1000/(4π)≈79,58 , 1 .

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1 1/2·1/2·1.

1 = 1000/(4π) A/ ≈ 79,5774715 /.

; 1 = 105 .

  . , .

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  1. History of IEC. Overview.

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  • . // . 5- . .: . . . . 1988.
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