Electric Transmission of Energy and Its Transformation, Subdivision, and Distribution: A Practical HandbookWhittaker & Company, 1886 - 331 páginas |
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Página 26
... side turned towards the observer in the figure , it will be repelled , and if we approach a S pole it will be at- tracted . The opposite takes place on the back . The ABSOLUTE MEASUREMENTS . 27 same would happen if instead of 26 ...
... side turned towards the observer in the figure , it will be repelled , and if we approach a S pole it will be at- tracted . The opposite takes place on the back . The ABSOLUTE MEASUREMENTS . 27 same would happen if instead of 26 ...
Página 27
... side of which we 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 ...
... side of which we 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 ...
Página 49
... side on which was placed the N pole of the magnet . It will be seen at a glance that this apparatus is nothing else Fig . 10 . N but our arrangement of a slider in rotary form , the lines of the magnetic field being in this case ...
... side on which was placed the N pole of the magnet . It will be seen at a glance that this apparatus is nothing else Fig . 10 . N but our arrangement of a slider in rotary form , the lines of the magnetic field being in this case ...
Página 50
... sides , and containing two circular grooves of taper- ing section into which are laid the exciting coils E , formed of insulated copper wire . If a current passes through these coils , it produces lines of force which com- pletely ...
... sides , and containing two circular grooves of taper- ing section into which are laid the exciting coils E , formed of insulated copper wire . If a current passes through these coils , it produces lines of force which com- pletely ...
Página 55
... side of ' the vertical diameter , and it will flow from B2 through the external circuit , and enter the machine at B1 during the time the crank is on the left - hand side of the vertical diameter . Let n be the number of revolutions per ...
... side of ' the vertical diameter , and it will flow from B2 through the external circuit , and enter the machine at B1 during the time the crank is on the left - hand side of the vertical diameter . Let n be the number of revolutions per ...
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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...