Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
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Página 560
... Hence we have only to compare the total amounts of torsion with the distances of the two balls . By such comparisons Coulomb found that the force of electrical repulsion varies inversely as the square of the distance . The following are ...
... Hence we have only to compare the total amounts of torsion with the distances of the two balls . By such comparisons Coulomb found that the force of electrical repulsion varies inversely as the square of the distance . The following are ...
Página 561
... Hence we perceive that , as the distance is divided by 2 , or by 4 , the force of repulsion is multiplied by 4 or by 16 , which precisely agrees with the law enunciated above . α 568. Equation of Equilibrium . - We must , however ...
... Hence we perceive that , as the distance is divided by 2 , or by 4 , the force of repulsion is multiplied by 4 or by 16 , which precisely agrees with the law enunciated above . α 568. Equation of Equilibrium . - We must , however ...
Página 562
... Hence the repulsion at distance 9 should be less than a quarter of that at distance 18. The apparent error thus confirms the law . Many persons have adduced , as tending to overthrow Coulomb's law of inverse squares , experimental ...
... Hence the repulsion at distance 9 should be less than a quarter of that at distance 18. The apparent error thus confirms the law . Many persons have adduced , as tending to overthrow Coulomb's law of inverse squares , experimental ...
Página 566
... Hence the charge previously developed by induc- tion on the outside of A must have been precisely equal to that acquired by the contact , that is , must have been equal to the charge of C. E Fig . 344. - Ice - pail Experiment ...
... Hence the charge previously developed by induc- tion on the outside of A must have been precisely equal to that acquired by the contact , that is , must have been equal to the charge of C. E Fig . 344. - Ice - pail Experiment ...
Página 571
... hence the electric density at those places is really finite ; but it is exceedingly great in comparison with the density at other parts , and this is especially true of very acute points , such as the point of a fine needle . The ...
... hence the electric density at those places is really finite ; but it is exceedingly great in comparison with the density at other parts , and this is especially true of very acute points , such as the point of a fine needle . The ...
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