Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
Dentro del libro
Resultados 1-5 de 24
Página 540
... disc electrometers ; Difference of potentials proportional to distance , if force is constant , 641. Absolute electrometer , 642. Portable electrometer , 643. Quadrant electrometer ; Replenisher , 644. Cage electrometer , 645 , pp . 632 ...
... disc electrometers ; Difference of potentials proportional to distance , if force is constant , 641. Absolute electrometer , 642. Portable electrometer , 643. Quadrant electrometer ; Replenisher , 644. Cage electrometer , 645 , pp . 632 ...
Página 550
... discs , one of glass , and the other of metal , and , holding them by insulating handles , rub them briskly together , we shall find that the metal becomes negatively , and the glass posi- tively electrified ; but if the metal be ...
... discs , one of glass , and the other of metal , and , holding them by insulating handles , rub them briskly together , we shall find that the metal becomes negatively , and the glass posi- tively electrified ; but if the metal be ...
Página 564
... disc of gilt paper insu- lated by a thin handle of shellac , is then ap- plied to the interior surface of the sphere , and , when tested by an electric pendulum or an electroscope , is found to exhibit no trace of electricity . But if ...
... disc of gilt paper insu- lated by a thin handle of shellac , is then ap- plied to the interior surface of the sphere , and , when tested by an electric pendulum or an electroscope , is found to exhibit no trace of electricity . But if ...
Página 569
... Disc ( Fig . 348 ) . The density is almost inappreciable over the whole of both faces , except close to the edges , where it increases almost per saltum . 4. Cylinder with Hemispherical Ends ( Fig . 349 ) . The density is Fig . 348 ...
... Disc ( Fig . 348 ) . The density is almost inappreciable over the whole of both faces , except close to the edges , where it increases almost per saltum . 4. Cylinder with Hemispherical Ends ( Fig . 349 ) . The density is Fig . 348 ...
Página 580
... disc of resin , or some other material easily excited by friction , and of a polished metal ELECTROPHORUS . 581 disc B with an insulating handle CD 580 ELECTRICAL MACHINES .
... disc of resin , or some other material easily excited by friction , and of a polished metal ELECTROPHORUS . 581 disc B with an insulating handle CD 580 ELECTRICAL MACHINES .
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