Absolute Measurements in Electricity and MagnetismMacmillan and Company, 1889 - 384 sider |
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Resultat 1-5 av 86
Side 10
... Hence the total repulsive force exerted 2λ 2λ ' ' ( + λ ) 2 " the needle , as in Fig . 1 , the value by the magnet on the blue pole of the needle is MM ' 4λλ ' I - I M ' ( ~ — X ) 2 ̄ ( ~ + x ) 2 } or M 14 . - r X ( X2 ) 2 I Proceeding ...
... Hence the total repulsive force exerted 2λ 2λ ' ' ( + λ ) 2 " the needle , as in Fig . 1 , the value by the magnet on the blue pole of the needle is MM ' 4λλ ' I - I M ' ( ~ — X ) 2 ̄ ( ~ + x ) 2 } or M 14 . - r X ( X2 ) 2 I Proceeding ...
Side 12
... to the earth's horizontal force , which , as before , has the value M'H sin 0. Hence equating these two couples we have- M H = ( 2 + 2 ) tan ( 2 ) Still another position of the deflecting magnet relatively to the 12 DETERMINATION OF H.
... to the earth's horizontal force , which , as before , has the value M'H sin 0. Hence equating these two couples we have- M H = ( 2 + 2 ) tan ( 2 ) Still another position of the deflecting magnet relatively to the 12 DETERMINATION OF H.
Side 15
... of this equation is 0 = A sin sin√MH t - B } and therefore for the period of oscillation Twe have μ T = 2π MH Hence we have 4πμ MH = T2 Now , since DETERMINATION OF H. 15 Calculation of Moments of Magnets and of H from Results.
... of this equation is 0 = A sin sin√MH t - B } and therefore for the period of oscillation Twe have μ T = 2π MH Hence we have 4πμ MH = T2 Now , since DETERMINATION OF H. 15 Calculation of Moments of Magnets and of H from Results.
Side 16
Andrew Gray. Hence we have 4πμ MH = T2 Now , since the thickness of the magnet is small compared with its length , if W be the mass of the magnet and 2 / its actual length , μ is W / 2 / 3 , and therefore ΜΗ 4π212 W = 372 ( 3 ) Combining ...
Andrew Gray. Hence we have 4πμ MH = T2 Now , since the thickness of the magnet is small compared with its length , if W be the mass of the magnet and 2 / its actual length , μ is W / 2 / 3 , and therefore ΜΗ 4π212 W = 372 ( 3 ) Combining ...
Side 28
... Hence ( 3 ) becomes : MH = 4 π2 ( 12 + 34 d2 ) W 3 T2 · ( 10 ) Hence for a single deflector we get instead of equations ( 4 ) , ( 5 ) , ( 6 28 DETERMINATION OF H.
... Hence ( 3 ) becomes : MH = 4 π2 ( 12 + 34 d2 ) W 3 T2 · ( 10 ) Hence for a single deflector we get instead of equations ( 4 ) , ( 5 ) , ( 6 28 DETERMINATION OF H.
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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
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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.