Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
Dentro del libro
Resultados 1-5 de 55
Página 546
... hand and rubbed with wool , it does not acquire the properties Fig . 333. - Electrification of a Metal by Friction of an electrified body . But we should be wrong in concluding that metals cannot be electrified by friction ; for if the ...
... hand and rubbed with wool , it does not acquire the properties Fig . 333. - Electrification of a Metal by Friction of an electrified body . But we should be wrong in concluding that metals cannot be electrified by friction ; for if the ...
Página 547
... earth is often called the com- mon reservoir . It will now be easily understood why it is not possible to electrify a metal rod by rubbing it while it is held in the hand ; since the electricity , as fast as it is generated , passes.
... earth is often called the com- mon reservoir . It will now be easily understood why it is not possible to electrify a metal rod by rubbing it while it is held in the hand ; since the electricity , as fast as it is generated , passes.
Página 566
... hand holding it from the ice - pail below . Let A be perfectly discharged , and let C , after being charged at a distance , be introduced into A as in the figure . If C be positive , E also will diverge positively ; if C be taken away ...
... hand holding it from the ice - pail below . Let A be perfectly discharged , and let C , after being charged at a distance , be introduced into A as in the figure . If C be positive , E also will diverge positively ; if C be taken away ...
Página 573
... hands upon the ball , thus causing the friction necessary for the production of electricity . The result was that the globe ... hand . This mode of applying friction , which is evidently rude RAMSDEN'S MACHINE . 575 and defective , was ...
... hands upon the ball , thus causing the friction necessary for the production of electricity . The result was that the globe ... hand . This mode of applying friction , which is evidently rude RAMSDEN'S MACHINE . 575 and defective , was ...
Página 582
... one of them much larger than the other , the larger one being turned by VOSS MACHINE . 583 hand . This plate has six. Fig . 359. - Bertsch's Electrical Machine . Fig . 360. - Voss Machine . Fig . 362. 582 ELECTRICAL MACHINES .
... one of them much larger than the other , the larger one being turned by VOSS MACHINE . 583 hand . This plate has six. Fig . 359. - Bertsch's Electrical Machine . Fig . 360. - Voss Machine . Fig . 362. 582 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