Absolute Measurements in Electricity and MagnetismMacmillan and Company, 1889 - 384 sider |
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Resultat 1-5 av 56
Side 5
... centre , or the Helmholtz modification of the same instrument with two large equal coils placed side by side at a distance apart equal to the radius of either ; or some form of " dynamometer , " or instrument which instead of the needle ...
... centre , or the Helmholtz modification of the same instrument with two large equal coils placed side by side at a distance apart equal to the radius of either ; or some form of " dynamometer , " or instrument which instead of the needle ...
Side 7
... centre of the mirror , the calculations of results are much simplified . The instrument is set up with its glass front in the magnetic meridian , and levelled so that the mirror hangs freely inside its chamber . The foot of one of the ...
... centre of the mirror , the calculations of results are much simplified . The instrument is set up with its glass front in the magnetic meridian , and levelled so that the mirror hangs freely inside its chamber . The foot of one of the ...
Side 9
... centre of the magnet is also noted , and is taken as twice the distance of the centre of the magnet from that of the needle . The same opera- tion is gone through for each of the magnets , which are carefully kept apart from one another ...
... centre of the magnet is also noted , and is taken as twice the distance of the centre of the magnet from that of the needle . The same opera- tion is gone through for each of the magnets , which are carefully kept apart from one another ...
Side 10
... centre of the magnet from the centre of the needle , 2λ the distance between the " poles " ( p . 36 ) of the magnet which , for a nearly uniformly magnetized magnet of the dimen- sions stated above , is nearly equal to its length , and ...
... centre of the magnet from the centre of the needle , 2λ the distance between the " poles " ( p . 36 ) of the magnet which , for a nearly uniformly magnetized magnet of the dimen- sions stated above , is nearly equal to its length , and ...
Side 11
... centre of the needle , the magnet may be placed , as represented in Fig . 2 , with its length east and west , and its centre in the horizontal north and south line through the centre of the needle . If we take M , M ' , X , X ' , and r ...
... centre of the needle , the magnet may be placed , as represented in Fig . 2 , with its length east and west , and its centre in the horizontal north and south line through the centre of the needle . If we take M , M ' , X , X ' , and r ...
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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.