Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
Dentro del libro
Resultados 1-5 de 30
Página 539
... ball and gold - leaf electroscopes , 565 , pp . 553-558 . CHAPTER XLIII . MEASUREMENT OF ELECTRICAL FORCES . Coulomb's torsion - balance , 566. Repulsion inversely as square of distance , 567. Correc- tions , and fallacious objections ...
... ball and gold - leaf electroscopes , 565 , pp . 553-558 . CHAPTER XLIII . MEASUREMENT OF ELECTRICAL FORCES . Coulomb's torsion - balance , 566. Repulsion inversely as square of distance , 567. Correc- tions , and fallacious objections ...
Página 540
... 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 of observation ; Automatic records at Kew ; Eye observations at ...
... 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 of observation ; Automatic records at Kew ; Eye observations at ...
Página 548
... ball suspended by a silk fibre from an insulated support . When an electrified glass rod is brought near the insulated ball , the latter is attracted ; but as soon as it touches the glass tube , the attraction is changed to repulsion ...
... ball suspended by a silk fibre from an insulated support . When an electrified glass rod is brought near the insulated ball , the latter is attracted ; but as soon as it touches the glass tube , the attraction is changed to repulsion ...
Página 553
... balls . When the cylinder is brought near the sphere , the balls are observed to diverge . The divergence of the different pairs is not C A Fig . 335. - Electrification by Influence . B the same , but goes on decreasing from the pair ...
... balls . When the cylinder is brought near the sphere , the balls are observed to diverge . The divergence of the different pairs is not C A Fig . 335. - Electrification by Influence . B the same , but goes on decreasing from the pair ...
Página 554
... balls at A , when these will be found to be repelled ; if , on the contrary , it be held near those at B , they will be attracted . The explanation is , that the positive electricity with which C is charged attracts the negative ...
... balls at A , when these will be found to be repelled ; if , on the contrary , it be held near those at B , they will be attracted . The explanation is , that the positive electricity with which C is charged attracts the negative ...
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