ELECTRICITY IN LOCOMOTION - BOOK

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TRADITIONAL INDUSTRIAL ARTS DESIGN - PRACTICAL METHODS FOR STUDENTS, TEACHERS, AND CRAFTSMEN - BY WILLIAM H. VARNUM 1916

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CONTENTS CHAPTER PAGE I. Divisions of Industrial Arts Design 7 II. The Primary Mass and Its Proportions 13 III. Horizontal Major Divisions of the Primary Mass 19 IV. Vertical Major Divisions of the Primary Mass 33 V. Appendages and the Rules Governing Them 43 VI. Enrichment of the Contours or Outlines of Designs in Wood 57 VII. Enrichment of the Contours or Outlines of Designs in Clay 77 VIII. Enrichment of the Contours or Outlines of Designs in Base and Precious Metals 87 IX. Surface Enrichment of Small Primary Masses in Wood 99 X. Surface Enrichment of Small Primary Masses in Wood. (Continued) 117 XI. Surface Enrichment with Minor Subdivisions of Lar...
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Solution : Field on the axis of a circular opening of a plane - corrected exercises Gauss theorem

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∎ Back to exercise     The Load distribution can be seen as the result of the superposition of an infinite plane of a surface density of charge s and a disc with a density - s. The field at a point M of the axis  according to the principle of superposition is the vector sum of the fields created by each of these distributions taken separately. Either:   Noting the unit vector normal to the plane and oriented to the point M, z the coast of the point M from the center of the circular opening ,we have , using conventional demonstrated results in progress (demonstrate need to know!): Finally : ∎ Back to exercise ∎ See the list of electromagnetism exercises
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