EMEC: Difference between revisions

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<math>r_m=(\frac{1}{2})\frac{OD + ID}{2}</math>
<math>r_m=(\frac{1}{2})\frac{OD + ID}{2}</math>


<math>l_m= 2*pi*r_m</math>
 
<math> l_m = { 2 \pi r_m} = 0.141\ </math>


<math>H_m=(\frac{Ni}{l_m})</math>
<math>H_m=(\frac{Ni}{l_m})</math>


<math>H_m=\frac{20 x 2.5}{.141}= 354.6\ A /m)</math>
<math>H_m=\frac{20 x 2.5}{.141}= 354.6\ A /m)</math>

Latest revision as of 20:10, 18 January 2010

rm=(12)OD+ID2


lm=2πrm=0.141

Hm=(Nilm)

Hm=20x2.5.141=354.6A/m)