Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
Dentro del libro
Resultados 1-5 de 87
Página 546
... passes between the tube and knuckle . The tube then has acquired peculiar properties by the application of friction . It is said to be electrified , and the name of electricity is given to the agent to which the various phenomena just ...
... passes between the tube and knuckle . The tube then has acquired peculiar properties by the application of friction . It is said to be electrified , and the name of electricity is given to the agent to which the various phenomena just ...
Página 547
... the 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.
... the 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 548
... passes off through the body into the earth . Air , when thoroughly dry , is an excellent insulator ; and electrified conductors exposed to it , and otherwise insulated , retain their charge with very little diminution for a considerable ...
... passes off through the body into the earth . Air , when thoroughly dry , is an excellent insulator ; and electrified conductors exposed to it , and otherwise insulated , retain their charge with very little diminution for a considerable ...
Página 557
... passes through an opening in the top of a bell - glass , and terminates in a ball . The metallic rod is sometimes , for the sake of better insulation , inclosed in a glass tube secured by sealing - wax or some other non - conducting ...
... passes through an opening in the top of a bell - glass , and terminates in a ball . The metallic rod is sometimes , for the sake of better insulation , inclosed in a glass tube secured by sealing - wax or some other non - conducting ...
Página 559
... 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 with it ; but the latter can also be turned ...
... 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 with it ; but the latter can also be turned ...
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