Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 1060
N — Fig. 1007 Fig. 1008 When the armature is rotated on closed circuit and the brushes are in theposition corresponding to the ends of AB, sparks pass between the brushes -991] Classification of Dynamo Machines 1035 and the contact pieces, which would speedily destroy them. It is foundthat by…
Physics
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