Elementary Treatise on Natural Philosophy, Volumen3

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