Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
Dentro del libro
Resultados 1-5 de 72
Página 540
... obtaining indications ; Arrow , point , burning match , insulated ball , water jet , 654. Interpretation of indications . They measure density of electricity on earth's surface . This is induced by electricity over- head , 655. Results ...
... obtaining indications ; Arrow , point , burning match , insulated ball , water jet , 654. Interpretation of indications . They measure density of electricity on earth's surface . This is induced by electricity over- head , 655. Results ...
Página 560
... obtain a number of dif- ferent positions in which repulsion is balanced by torsion . But we know , from the laws of ... obtained in one of the experiments . The original deviation of the movable ball being 36 ° , it was found that , in ...
... obtain a number of dif- ferent positions in which repulsion is balanced by torsion . But we know , from the laws of ... obtained in one of the experiments . The original deviation of the movable ball being 36 ° , it was found that , in ...
Página 562
... obtained . On comparing the distances with the corre- sponding torsions , it is , found that the same law holds as in the case of repulsion . The experiment , however , is difficult , and is only pos- sible when the balls are very ...
... obtained . On comparing the distances with the corre- sponding torsions , it is , found that the same law holds as in the case of repulsion . The experiment , however , is difficult , and is only pos- sible when the balls are very ...
Página 563
... obtained by touching the movable ball with a ball of its own size . We conclude that , if the charge of either body be altered , the attractive or repulsive force between the bodies at given distance will be altered in the same ratio ...
... obtained by touching the movable ball with a ball of its own size . We conclude that , if the charge of either body be altered , the attractive or repulsive force between the bodies at given distance will be altered in the same ratio ...
Página 570
... obtained by Coulomb in the following manner . He touched the electrified body at a known point with the proof - plane , and then put the plane in the place of the fixed ball of the torsion - balance , the movable ball having previously ...
... obtained by Coulomb in the following manner . He touched the electrified body at a known point with the proof - plane , and then put the plane in the place of the fixed ball of the torsion - balance , the movable ball having previously ...
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