From: dhky@shaw.ca   
      
   On 23/05/2015 8:18 PM, Apachedan wrote:   
   > I know the size of a piece of iron to be magnetized and the density of   
   > the   
   > gauss per CM . How can I calculate the ampere turns necessary for that   
   > magnet?   
   >   
   shape, size of airgap between in the magnetic path? The latter and the   
   flux density will be the dominant factors rather than the iron itself.   
      
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