Absolute Measurements in Electricity and MagnetismMacmillan and Company, 1889 - 384 sider |
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Side 5
... fixed coil flows . The measure- ment consists essentially in determining the couple which must be exerted by the earth's magnetic force on the needle or suspended coil , in order to equilibrate that exerted by the current . But the ...
... fixed coil flows . The measure- ment consists essentially in determining the couple which must be exerted by the earth's magnetic force on the needle or suspended coil , in order to equilibrate that exerted by the current . But the ...
Side 6
... fixed with that end down in a horizontal base - piece of wood furnished with three levelling screws . The groove is thus * " Intensitas vis magneticae ad mensuram absolutam revocata . " - Com- ment . Soc . Reg . Gotting . 1833 . placed ...
... fixed with that end down in a horizontal base - piece of wood furnished with three levelling screws . The groove is thus * " Intensitas vis magneticae ad mensuram absolutam revocata . " - Com- ment . Soc . Reg . Gotting . 1833 . placed ...
Side 7
... replaced in exactly the same position . A beam of light passes through a slit , in which a thin vertical cross - wire is fixed , from a lamp placed in front of the magnetometer , and is reflected , as in Thomson's DETERMINATION OF H. 7.
... replaced in exactly the same position . A beam of light passes through a slit , in which a thin vertical cross - wire is fixed , from a lamp placed in front of the magnetometer , and is reflected , as in Thomson's DETERMINATION OF H. 7.
Side 22
... fixed in the sole plate . The apparatus is so adjusted that the bottom of the V - groove is just over the pivot c . The magnet when placed in the carriage lies along the groove , and the screw s serves to give a fine adjustment of the ...
... fixed in the sole plate . The apparatus is so adjusted that the bottom of the V - groove is just over the pivot c . The magnet when placed in the carriage lies along the groove , and the screw s serves to give a fine adjustment of the ...
Side 39
... fixed in the meridian plane containing the suspension thread , and the observer placing his eye in their plane can easily tell very exactly when the magnet is passing through the equilibrium position , and so determine the period . Or a ...
... fixed in the meridian plane containing the suspension thread , and the observer placing his eye in their plane can easily tell very exactly when the magnet is passing through the equilibrium position , and so determine the period . Or a ...
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amperes angles arrangement balance battery brass C.G.S. units C₂ cell centimetres centre coil comparison condenser conductor connected constant convenient copper cross-sections current flowing current strength deflection denote density described determined difference of potential dimensional formula distance E₁ electrical efficiency Electricity and Magnetism electrodes electromagnetic electromotive force electrostatic equal equation fixed give given graduated grammes Hence horizontal induction instrument insulated joined in series kathode Lord Rayleigh machine magnetic field means ment method motor movable ring n² L² nearly needle numerical obtained Ohm's law ohms piece placed plane plate points pole position potential galvanometer practical unit quantity of electricity r₁ R₂ ratio rheostat round scale screws self-induction shown in Fig Sir William Thomson slider sliding standard surface temperature terminals thick turned unit of length V₁ V₂ velocity vertical voltmeter volts vulcanite wattmeter weight Wheatstone's Bridge wire wire coils zero
Populære avsnitt
Side 385 - With the Mathematical Elements of Music. Designed for the Use of Students in the University. Second Edition, revised and enlarged. Crown 8vo. gs. A TREATISE ON MAGNETISM. Designed for the Use of Students in the University.