Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
Dentro del libro
Resultados 1-5 de 39
Página 568
... usually equal . But the electricity carried off by the proof - plane is simply the electricity which resided on the part of the surface covered by it , for the proof- plane during the time of its contact is virtually part of the surface ...
... usually equal . But the electricity carried off by the proof - plane is simply the electricity which resided on the part of the surface covered by it , for the proof- plane during the time of its contact is virtually part of the surface ...
Página 571
... usually made to terminate in large knobs . 579. Dissipation of Charge . - When an insulated conductor is charged and left to itself , its charge is gradually dissipated , and at length completely disappears . This loss takes place ...
... usually made to terminate in large knobs . 579. Dissipation of Charge . - When an insulated conductor is charged and left to itself , its charge is gradually dissipated , and at length completely disappears . This loss takes place ...
Página 581
... usually a base or sole of metal , which is in connection with the earth while the electrophorus is being worked . When the cover receives its positive charge on being connected with the earth , the sole at the same time receives from ...
... usually a base or sole of metal , which is in connection with the earth while the electrophorus is being worked . When the cover receives its positive charge on being connected with the earth , the sole at the same time receives from ...
Página 585
... usually straight . Powerful machines sometimes give sparks of the length of a foot . usually a zig - zag form , like flashes of lightning . means of obtaining long sparks consists in placing , opposite to one of the small knobs of the ...
... usually straight . Powerful machines sometimes give sparks of the length of a foot . usually a zig - zag form , like flashes of lightning . means of obtaining long sparks consists in placing , opposite to one of the small knobs of the ...
Página 593
... usually requires very power- ful discharges , such as can only be obtained by means of apparatus which will be described in Chapter xlvii . The luminosity of the electric spark is probably due to the very high temperature which is ...
... usually requires very power- ful discharges , such as can only be obtained by means of apparatus which will be described in Chapter xlvii . The luminosity of the electric spark is probably due to the very high temperature which is ...
Términos y frases comunes
acid action angle apparatus armature arrangement attraction axis ball battery binding-screws body called carbon cells centimetres centre charge circuit condenser conductor connected consists copper copper plate copper wire current is passing cylinder deflection denote diamagnetic difference of potential disc discharge distance earth effect electrical machine electrified electro-magnet electro-motive force electrolysis electroscope employed energy equal experiment galvanometer glass gutta percha heat Hence horizontal increase inner coating instrument insulated intensity inversely junction knob length Leyden jar lines of force liquid magnetic force magnetic meridian mercury metal millimetre mirror galvanometer motion movable needle negative observed obtained opposite direction outer coating parallel perpendicular plane poles portion positive electricity produced quantity of electricity repelled represented in Fig repulsion resistance revolving rotation round shellac side solenoid spark surface suspended telegraph temperature terrestrial magnetism Thomson effect tion tricity tubes of force unit V₁ velocity vertical wire zinc