International Library of Technology · Scranton, International Textbook Co. · leaf 517
areat the points markedN, S. The magneticdensity is greatestopposite the centerof the pole, and may be represented by the arrow « (^directedoutwards from a south pole, or a b directed inwards froma north pole. As we move towards either side of the centerof a pole, the field intensity diminishes… … FlG. CURRENT APPARATUS. 2883 sented quite closely by a sine curve, and if the line a b repre-sents the maximum value of the density, the average value 2 2 of the density will \)& a b Y.— (av. value = max. value X—). Tience, if B represents the maximum value of the density, B X— will be the…
Electrical engineering
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