What is Electricity?D. Appleton and Company, 1903 - 315 pagini |
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Pagina 11
... coil of wire and a magnet . The reason that it remained undiscovered so long was due to the difficulty of obtaining well - insulated copper wire , and to the want of a sufficiently sensitive instrument to de- tect it . The story of the ...
... coil of wire and a magnet . The reason that it remained undiscovered so long was due to the difficulty of obtaining well - insulated copper wire , and to the want of a sufficiently sensitive instrument to de- tect it . The story of the ...
Pagina 22
... 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 nonmagnetic body like glass to fall through the coil and then to be drawn up through the coil ...
... 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 nonmagnetic body like glass to fall through the coil and then to be drawn up through the coil ...
Pagina 46
... coils of covered wire makes an iron core a magnet . The oftener we make it flow around the iron , or , within certain limits , the more turns of wire we put upon our spool , keeping the strength of the electric current constant , the ...
... coils of covered wire makes an iron core a magnet . The oftener we make it flow around the iron , or , within certain limits , the more turns of wire we put upon our spool , keeping the strength of the electric current constant , the ...
Pagina 54
... coils of iron wire through which an elec- tric current passes . The heat is due to the resistance of the iron wire . It is thought , indeed , by some that all the culinary operations in our houses in time will be per- formed by ...
... coils of iron wire through which an elec- tric current passes . The heat is due to the resistance of the iron wire . It is thought , indeed , by some that all the culinary operations in our houses in time will be per- formed by ...
Pagina 91
... coil of wire is attended by an electrical disturbance in the wire , it is natural to suppose that we can produce electrical disturbances by keeping the mag- net fixed in position and by moving the coil of wire . Experiment will speedily ...
... coil of wire is attended by an electrical disturbance in the wire , it is natural to suppose that we can produce electrical disturbances by keeping the mag- net fixed in position and by moving the coil of wire . Experiment will speedily ...
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Termeni și expresii frecvente
action alternating current apparatus attraction bodies 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 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 tric tricity tube velocity vibrations voltaic cell zinc
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Pagina 199 - Electrical matter differs from common matter in this, that the parts of the latter mutually attract, those of the former mutually repel each other.