Electric Transmission of Energy and Its Transformation, Subdivision, and Distribution: A Practical HandbookWhittaker & Company, 1886 - 331 páginas |
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Página 18
... assume that the lines are of different strength , and that the mechanical force with which a given free magnet pole is urged along any one particular line is dependent on the strength of that line , which may be different from that of ...
... assume that the lines are of different strength , and that the mechanical force with which a given free magnet pole is urged along any one particular line is dependent on the strength of that line , which may be different from that of ...
Página 19
... assume , a mechanical force can only be exerted by lines actually passing through the magnet pole , it will be evident that in case the pole be a mathematical point , only one line can pass through it and exert mechanical force on it ...
... assume , a mechanical force can only be exerted by lines actually passing through the magnet pole , it will be evident that in case the pole be a mathematical point , only one line can pass through it and exert mechanical force on it ...
Página 24
... assume that a current is flowing down the wire . If we sprinkle iron filings on to the paper near the wire , we find that they arrange themselves in concentric circles around it , and if we shift the paper into other places along the ...
... assume that a current is flowing down the wire . If we sprinkle iron filings on to the paper near the wire , we find that they arrange themselves in concentric circles around it , and if we shift the paper into other places along the ...
Página 27
... assume to be covered with N mag- netic matter , and the other side with an equal amount of S magnetic matter . By properly choosing the amount of magnetism distributed over the discs , we can obtain a magnet which in its action at a ...
... assume to be covered with N mag- netic matter , and the other side with an equal amount of S magnetic matter . By properly choosing the amount of magnetism distributed over the discs , we can obtain a magnet which in its action at a ...
Página 30
... assume the simplest possible case , viz . , that of a uniform field , the lines of which we suppose to be vertical . Let two metallic bars be fixed at equal distance from the ground , and parallel to each other , and let a third bar ...
... assume the simplest possible case , viz . , that of a uniform field , the lines of which we suppose to be vertical . Let two metallic bars be fixed at equal distance from the ground , and parallel to each other , and let a third bar ...
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amperes armature core arrangement battery brake brushes cable capital outlay cent chapter commercial efficiency commutator conductor connected constant speed cost counter-electro-motive force Creil curve cylinder dead points diameter distance dynamos and motors electric transmission electrical efficiency electrical energy electrical resistance electro-motive force employed engine equal equation exciting power experiments external field magnets flow formula friction Gramme dynamo Gramme machine greater heat horse-shoe hydraulic inches increase insulation iron latter length lines of force load loss machine magnet pole magnetic field magnetic resistance Marcel Deprez maximum mechanical energy motive force number of lines obtained ohms parallel placed pole pieces position practical pressure produced proportional represent revolutions a minute rheostat right angles self-induction self-regulating series-wound shown in Fig shunt coils slider spindle steam-engine steel strength tion total number trans transmission of energy transmitted volts weight whilst wound وو
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Página 209 - ... filled with paper, wood shavings, or other protective material that prevent the articles from moving about or coming in contact with each other or with the sides of the box In course of transmission. (2) Liquids, oils, etc. Liquids, oils, and substances which easily liquefy must be enclosed in hermetically sealed receptacles. Each receptacle must be placed in a separate box of metal, strong wood, or strong corrugated...
Página 210 - Now, if we have a single pair of cables, one of them connected to the positive and the other to the negative terminal of the...