Electric generators; electric lightD. Appleton, 1883 |
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Página 9
... Siemens unit is used , represented by the resistance of a column of purified mercury , one metre long and one milli- metre square in section : it is nearly equal to the ohm . " The unit of electro - motive force takes the name of Volt ...
... Siemens unit is used , represented by the resistance of a column of purified mercury , one metre long and one milli- metre square in section : it is nearly equal to the ohm . " The unit of electro - motive force takes the name of Volt ...
Página 57
... Siemens ' Coil . - In 1854 , Siemens and Halske , of Berlin , advanced the question a good deal by inventing the coil which bears their name , and which we shall find again in a great number of apparatus , such as Wilde's , Ladd's ...
... Siemens ' Coil . - In 1854 , Siemens and Halske , of Berlin , advanced the question a good deal by inventing the coil which bears their name , and which we shall find again in a great number of apparatus , such as Wilde's , Ladd's ...
Página 58
... Siemens ' machine , and electric generators with continuous currents generally , are re- versible , that is , if they develop electricity by expending work , they can also produce work by expending electricity . Finally , Gramme's ...
... Siemens ' machine , and electric generators with continuous currents generally , are re- versible , that is , if they develop electricity by expending work , they can also produce work by expending electricity . Finally , Gramme's ...
Página 59
Édouard Hospitalier. above the other . The first was a Siemens ' magneto - electric machine , which transmitted the current to two large electro - magnets ; these latter served as inductors to a second Siemens ' coil , which formed the ...
Édouard Hospitalier. above the other . The first was a Siemens ' magneto - electric machine , which transmitted the current to two large electro - magnets ; these latter served as inductors to a second Siemens ' coil , which formed the ...
Página 60
... Siemens ' coils are placed transversely to the two extremities of these electro - magnets . The smaller of the two transmits its current to the electro - magnets to pre- serve their magnetism , the second is utilized for feeding the ...
... Siemens ' coils are placed transversely to the two extremities of these electro - magnets . The smaller of the two transmits its current to the electro - magnets to pre- serve their magnetism , the second is utilized for feeding the ...
Términos y frases comunes
action alternating currents apparatus arc lamps armature arrangement bobbins brushes Bunsen carbon carbon point carbon-holder Carcels centimetres Cheaper Edition cloth coils commutator conductor connected consists constructed copper core current passes cylinder Demy 8vo diameter discs distance dynamo dynamo-electric machine Edison effected electric current electric light electro-magnet electro-motive force electrode elements exciting machine fixed Gramme dynamo Gramme machine Gramme's heat horse-power illumination Illustrations incandescent lamps induction inductors insulated intensity iron Jablochkoff candle length lever lighthouses lower Lumière Électrique luminous point magnetic field mechanism Méritens metallic metres millimetres movable obtained piece placed plate platinum poles position post 8vo price 35 produced quantity regulator represented in Fig revolutions per minute ring screw Second Edition secondary battery secondary couple shunt Siemens Small crown 8vo solderings solenoid spiral spring sulphate temperature tension terminals thermo-electric traverses tube upper carbon vessel vols voltaic arc wheel wire zinc
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