What is Electricity?D. Appleton & Company, 1896 - 315 pagini |
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Pagina
... GALVANOMETER 86 VIII . THE DYNAMO MACHINE 94 IX . - SOURCES OF ELECTRIC POWER X. - TRANSFORMATIONS OF ENERGY XI . - ALTERNATING CURRENTS XII . - TRANSMISSION OF POWER BY ELECTRICITY XIII . SELF - INDUCTION XIV . THE LEYDEN JAR . 105 121 ...
... GALVANOMETER 86 VIII . THE DYNAMO MACHINE 94 IX . - SOURCES OF ELECTRIC POWER X. - TRANSFORMATIONS OF ENERGY XI . - ALTERNATING CURRENTS XII . - TRANSMISSION OF POWER BY ELECTRICITY XIII . SELF - INDUCTION XIV . THE LEYDEN JAR . 105 121 ...
Pagina 22
... galvanometer remained absolutely quiet if the galvanometer were connected with a coil which was moved across or along the lines of gravitating force . What led Faraday to suppose that an effect could be observed by allowing a ...
... galvanometer remained absolutely quiet if the galvanometer were connected with a coil which was moved across or along the lines of gravitating force . What led Faraday to suppose that an effect could be observed by allowing a ...
Pagina 61
... galvanometer , which is the electrician's microscope , will show its spreading . Not only can the spreading of the current be detected by galvanometers , but this action can also be studied by chemical analysis , as we shall see when we ...
... galvanometer , which is the electrician's microscope , will show its spreading . Not only can the spreading of the current be detected by galvanometers , but this action can also be studied by chemical analysis , as we shall see when we ...
Pagina 68
... galvanometer - a sensitive indica- tor of the electrical current which was excited in the circuit of the metals and the muscles and nerves of the frog . A new instrument in physical science often opens a great field of discovery . The ...
... galvanometer - a sensitive indica- tor of the electrical current which was excited in the circuit of the metals and the muscles and nerves of the frog . A new instrument in physical science often opens a great field of discovery . The ...
Pagina 78
... galvanometer he employed , for this apparatus served to illustrate through- out his treatise the various manifestations of heat due to motion . He used it instead of a thermometer . Since the date of the publication of Prof. Tyndall's ...
... galvanometer he employed , for this apparatus served to illustrate through- out his treatise the various manifestations of heat due to motion . He used it instead of a thermometer . Since the date of the publication of Prof. Tyndall's ...
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Termeni și expresii frecvente
action alternating current apparatus attraction body carbon cathode rays centimetres charged circuit coil of wire conductor connected copper copper wire Crookes tube current of electricity detect direction discharge distance dynamo dynamo machine earth effect elec electric current electric spark electric waves electrical energy electrical machine electro-magnetic electro-magnetic waves electro-motive force employed ether excited experiments Faraday flow fluid galvanometer glass gravitation horse power Illustrations inch insulated iron J. J. Thomson lamp Leyden jar lines of force lines of magnetic magnetic force manifestations means measure medium metals method mirror molecular molecules motor movement needle obtained ordinary oscillations oxygen pass phenomena phenomenon photograph pipes placed plate polarization pressure produced Prof refraction resistance revolving Ruhmkorff coil self-induction south pole space spark gap spool steam engine storage battery suitable telephone terminals theory tion to-and-fro currents transformations of energy transmitted tricity tube velocity vibrations voltaic cell zinc
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Pagina 314 - SOUND : a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the use of Students of every age.
Pagina 296 - ... of our planet, so far as we know it; and nitrogen is very far the predominant constituent of our atmosphere. If the earth is a detached bit whirled off the mass of the sun, as cosmogonists love to tell us, how comes it that in leaving the sun we cleaned him out so completely of his nitrogen and oxygen that not a trace of these gases remains behind to be discovered even by the sensitive vision of the spectroscope...
Pagina 256 - In extending the researches relative to this part of the investigations, a remarkable result was obtained in regard to the distance at which inductive effects are produced by a very small quantity of electricity; a single spark from the prime conductor of the machine, of about an inch long, thrown on the end of a circuit of wire in an upper room, produced an induction sufficiently powerful to magnetize needles in a parallel circuit of wire...
Pagina 313 - Part I. MECHANICS, HYDROSTATICS, and PNEUMATICS. Part II. HEAT. Part III. ELECTRICITY and MAGNETISM. Part IV.
Pagina 118 - Faraday, in his mind's eye, saw lines of force traversing all space where the mathematicians saw centres of force attracting at a distance : Faraday saw a medium where they saw nothing but distance : Faraday sought the seat of the phenomena in real actions going on in the medium, they were satisfied that they had found it in a power of action at a distance impressed on the electric fluids.