Elementary Treatise on Natural Philosophy, Volumen3D. Appleton, 1891 |
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Página 540
... glass , 638. Firing mines and gun - cotton , 639 , CHAPTER XLIX . ELECTROMETERS . pp . 624-631 . Electrometers measure potential , 640. Attracted - disc electrometers ; Difference of potentials proportional to distance , if force is ...
... glass , 638. Firing mines and gun - cotton , 639 , CHAPTER XLIX . ELECTROMETERS . pp . 624-631 . Electrometers measure potential , 640. Attracted - disc electrometers ; Difference of potentials proportional to distance , if force is ...
Página 545
... glass tube be rubbed with a silk handkerchief , both tube and rubber being very dry , the tube will be found to have acquired the property of attracting light bodies . If the part rubbed be held near to small scraps of paper , pieces of ...
... glass tube be rubbed with a silk handkerchief , both tube and rubber being very dry , the tube will be found to have acquired the property of attracting light bodies . If the part rubbed be held near to small scraps of paper , pieces of ...
Página 546
... Glass is not the only substance which can be electrified by friction ; the same property is possessed also by resin , sulphur , precious stones , amber , & c . The Greek name of this last substance ( λEKTрov ) is the root from which the ...
... Glass is not the only substance which can be electrified by friction ; the same property is possessed also by resin , sulphur , precious stones , amber , & c . The Greek name of this last substance ( λEKTрov ) is the root from which the ...
Página 547
... Glass . Mica . Diamond . Lime . Oils . Metallic oxides . Feathers . Dry paper . Parchment . The human body is a good conductor of electricity . If a person standing on a stool with glass legs be struck with a catskin , he becomes ...
... Glass . Mica . Diamond . Lime . Oils . Metallic oxides . Feathers . Dry paper . Parchment . The human body is a good conductor of electricity . If a person standing on a stool with glass legs be struck with a catskin , he becomes ...
Página 548
... 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 , which lasts as long as the ball retains the electricity which it has acquired ...
... 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 , which lasts as long as the ball retains the electricity which it has acquired ...
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