International Library of Technology: A Series of Textbooks for Persons Engaged in the Engineering Professions and Trades, Or for Those who Desire Information Concerning Them, Volume 11, Part 2
International Textbook Company, 1906 - Technology
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ammeter ampere-hours ampere-turns amperes ance atoms battery British thermal unit C. G. S. unit calculated called capacity carbon cathode chemical coil condenser conductor copper wire coulombs current flowing curve deflection depolarizer diameter dielectric difference of potential direction divided dynamo elec electric current electrodes electrolyte electromagnetic electromotive force electrostatic element energy equal example fall of potential flux foot-pounds force per square formula galvanometer given glass grams heat hence hydrogen hysteresis increase induction insulation resistance internal resistance iron joint resistance joules junctions length lines of force magnetic circuit magnetic density magnetic field magnetizing force magnetomotive force measured metal meter negative number of lines obtained Ohm's law ohms parallel permeability piece plate positive charge produced represents sectional area shown in Fig shunt solenoid solution specific resistance square centimeter square inch sulphate sulphuric acid surface temperature total number total resistance voltaic cell voltmeter volts watt-hours watts zinc
Page 22 - Palladium .... Phosphorus . . . Platinum .... Potassium .... Selenium .... Silicon Silver Sodium . . . Strontium .... Sulphur .... Tellurium . . . Thallium .... Thorium .... Tin Tungsten .... Uranium .... Vanadium . . . Zinc .... Symbol Al So As Ba Bi B Br Cd Ca C Cl Cr Co Cu F Au
Page 22 - of Element Aluminum . . . Antimony .... Arsenic Barium Bismuth .... Boron Bromine ... Cadmium .... Calcium .... Carbon Chlorine .... Chromium . . . Cobalt Copper . Fluorine .... Gold Hydrogen .... Iodine Iron Lead Lithium ..... Magnesium . . . Manganese . . . Mercury .... Nickel ... Nitrogen
Page 52 - the circuit, and the entire operation is again repeated. These actions take place in rapid succession, a large number of times a second, constantly producing a change in the number of lines of force passing through the core, and thereby inducing a current in the secondary coil. A switch
Page 5 - The unit of energy is also the erg; for the energy of a body is measured by the work it can do. The unit of energy, the erg, is therefore also 1 dyne-centimeter. 17. The unit of power has no particular name in the
Page 6 - is desired to connect 32 cells, each having an EMF of 2 volts and an internal resistance of 4 ohms, in a seriesparallel group that will give the maximum current through an external resistance of 8 ohms.
Page 39 - Ohm's Law.— The strength of a continuous current of electricity in a circuit is directly proportional to the electromotive force, and inversely proportional to the resistance of
Page 45 - equivalent of any element or group of elements. This conforms to the law that the amount (weight) of any element that will be liberated by a given quantity of electricity is proportional to the chemical equivalent of that element.
Page 30 - as many lines of force are left behind as are gained in advancing, and there is, consequently, no change in the number of lines of force passing through the coil; hence there will be no current generated in it.
Page 20 - arrowheads and compass needles in Fig. 14, where the current is assumed to be flowing downwards, or away from the observer. If the direction of the current is reversed, the direction of the lines of force around the conductor will also be reversed. ACTION OF ONE
Page 5 - has been proved that a maximum current is obtained from a given number of cells through a given external resistance, when the grouping of the cells is such that the internal resistance of the battery is, as nearly as possible, equal to the external resistance. That is, arrange the cells so that — is, as nearly as