[SI-LIST] Very Basic question

  • From: Haritha Chanda <chandaharitha@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Tue, 7 Oct 2003 11:08:55 -0700 (PDT)

Hi
 
In Biot Savarts Law
 
we say dH(at a point) is proportional to I*dl*Sin(angle) and inversely 
proportional to square of the distance from that point to the conductor
 
Then finally we have constant of proportionality k= 1/4*pi  , my question is 
how did they come up with this value for k?
 
Thanks
Haritha
 

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