Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
Dentro del libro
Resultados 1-5 de 43
Página 559
... centre of the cap b is an opening through which passes a small metal cylinder d , capable of turning in the opening with moderate fric- tion , and having at its lower end a notch or slit . When the cap b is turned , the cylinder d turns ...
... centre of the cap b is an opening through which passes a small metal cylinder d , capable of turning in the opening with moderate fric- tion , and having at its lower end a notch or slit . When the cap b is turned , the cylinder d turns ...
Página 560
... centre of the needle ( the point of attachment of the wire ) , and a couple whose arm is the perpendicular from this centre on the line joining the balls . This couple must be equal to the couple of torsion . The other component ...
... centre of the needle ( the point of attachment of the wire ) , and a couple whose arm is the perpendicular from this centre on the line joining the balls . This couple must be equal to the couple of torsion . The other component ...
Página 561
... centre on the chord , dimi- A K B Fig . 340 . T ' nishes as the distance increases . The following investigation is more rigorous . Let AOB ( Fig . 340 ) , the angular distance of the balls , be denoted by a , and let be the length of ...
... centre on the chord , dimi- A K B Fig . 340 . T ' nishes as the distance increases . The following investigation is more rigorous . Let AOB ( Fig . 340 ) , the angular distance of the balls , be denoted by a , and let be the length of ...
Página 562
... than the distance between the centres . The strongest evidence for the rigorous exactness of the law of inverse squares is indirect ; see § 574 . LAW OF ATTRACTION AND REPULSION . 563 same result will 562 MEASUREMENT OF ELECTRICAL FORCES .
... than the distance between the centres . The strongest evidence for the rigorous exactness of the law of inverse squares is indirect ; see § 574 . LAW OF ATTRACTION AND REPULSION . 563 same result will 562 MEASUREMENT OF ELECTRICAL FORCES .
Página 569
... centre of the ellipsoid on a tangent plane at the point . If an ellipsoid , similar and nearly equal to the given one , be placed so that the corre- sponding axes of the two are coincident , we shall have a thin ellipsoidal shell ...
... centre of the ellipsoid on a tangent plane at the point . If an ellipsoid , similar and nearly equal to the given one , be placed so that the corre- sponding axes of the two are coincident , we shall have a thin ellipsoidal shell ...
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