Electricity Treated Experimentally, for the Use of Schools and StudentsRivingtons, 1886 - 389 pages |
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action ampères armature arrangement battery current body bound charge brass carbon cathode centimetres centre charge chemical chlorine circuit coat coil compound conductor connected consists contact breaker copper plate copper sulphate current passes current strength Daniell's cells decomposed decomposition deflection difference of potential direction discharge distance earth electrified electro-magnet electrolyte electrometer electroscope energy equal experiment external resistance Faraday friction galvanometer glass gram Grove cells heat horizontal hydrogen induced current insulated Leyden jar lines of force liquid machine magnet pole magnetic field magnetic meridian mercury cup metal molecules needle negative nitric acid north pole observed Ohm's law ohms opposite oscillations oxygen platinode platinum positive potential difference proportional quadrant rotation round separated set free shown shows silk soft iron spark sulphuric acid surface suspended temperature terminals thermal thermo-electric tion torsion circle tricity vertical vessel voltaic voltameter wire zinc plate zinc sulphate zincode
Popular passages
Page 90 - I went into the cube and lived in it, and using lighted candles, electrometers, and all other tests of electrical states, I could not find the least influence upon them, or indication of...
Page 197 - I propose to distinguish such bodies by calling those onions^ which go to the anode of the decomposing body; and those passing to the cathode, cations^.; and when I have occasion to speak of these together, I shall call them ions. Thus, the chloride of lead is an electrolyte, and when electrolyzed evolves the two ions, chlorine and lead, the former being an anion, and the latter a cation.
Page 197 - ... are evolved; and is against or opposite the positive electrode. The cathode is that surface at which the current leaves the decomposing body, and is its positive extremity; the combustible bodies, metals, alkalies, and bases, are evolved there, and it is in contact with the negative electrode.
Page 187 - Hence, as an approximation, and judging from magnetic force only at present (112), it would appear that two wires, one of platina and one of zinc, each one-eighteenth of an inch in diameter, placed five-sixteenths of an inch apart and immersed to the depth of five-eighths of an inch in acid, consisting of one drop...
Page 196 - In place of the term pole, I propose using that of electrode,* and I mean thereby that substance, or rather surface, whether of air, water, metal, or any other body, which bounds the extent of the decomposing matter in the direction of the electric current.
Page 187 - ... of an inch in acid, consisting of one drop of oil of vitriol and four ounces of distilled water at a temperature of about 60°...
Page 383 - Force is that which changes or tends to change a body's state of rest or uniform motion in a straight line.
Page 188 - ... brass cylinders connected by a third, the whole length being twelve feet, and the surface in contact with air about 1422 square inches. When in good excitation, one revolution of the plate will give ten or twelve sparks from the conductors, each an inch in length. Sparks or flashes from ten to fourteen inches in length may easily be drawn from the conductors.