Elementary Treatise on Electricity and MagnetismLongmans, Green, and Company, 1896 - 576 páginas |
Dentro del libro
Resultados 1-5 de 79
Página 16
... gives the average quantity in each unit of volume , or the mean electric density , of the space . If the space is very small , the density at any point within it cannot differ appre- ciably from the mean density . Hence we may define ...
... gives the average quantity in each unit of volume , or the mean electric density , of the space . If the space is very small , the density at any point within it cannot differ appre- ciably from the mean density . Hence we may define ...
Página 27
... gives way to the electric stresses , and all signs of electrification cease , almost or quite as completely as if the bounding conductors of the field had been brought into contact . FIG . 17 . This sudden breaking down of a dielectric ...
... gives way to the electric stresses , and all signs of electrification cease , almost or quite as completely as if the bounding conductors of the field had been brought into contact . FIG . 17 . This sudden breaking down of a dielectric ...
Página 47
... gives dv ds = = o when is a right angle . Put into words , this gives the result that there is no varia- tion of potential along the surface of a sphere with centre O , or that the potential has the same value at all points of such a ...
... gives dv ds = = o when is a right angle . Put into words , this gives the result that there is no varia- tion of potential along the surface of a sphere with centre O , or that the potential has the same value at all points of such a ...
Página 53
... to say , the point for which Q Q ' + = o , or Ω Q ' ' For the point I , we have r = r + AA ' , and therefore , with the values adopted for Q and Q ' , ( r + AA ) 2 / 2 = 4 , whence = AA ' , and r = 2 AA ' . This gives ,
... to say , the point for which Q Q ' + = o , or Ω Q ' ' For the point I , we have r = r + AA ' , and therefore , with the values adopted for Q and Q ' , ( r + AA ) 2 / 2 = 4 , whence = AA ' , and r = 2 AA ' . This gives ,
Página 54
George Carey Foster, Edmund Atkinson. and r = 2 AA ' . This gives , for the potential at I , and therefore for the whole of the equipotential surface we are considering V = 20 - 5 5 = 2AA ' Add ' AA ' and since in the figure AA ' is ...
George Carey Foster, Edmund Atkinson. and r = 2 AA ' . This gives , for the potential at I , and therefore for the whole of the equipotential surface we are considering V = 20 - 5 5 = 2AA ' Add ' AA ' and since in the figure AA ' is ...
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Otras ediciones - Ver todas
Elementary Treatise on Electricity and Magnetism George Carey Foster,Alfred William Porter Vista completa - 1909 |
Elementary Treatise on Electricity and Magnetism George Carey Foster,Edmund Atkinson Vista completa - 1896 |
Términos y frases comunes
acid action angle axis ball battery boundary capacity cell centre charge chemical circuit coating coefficient condenser conducting connected constant copper corresponding coulomb cylinder density dielectric difference of potentials discharge disruptive discharge distance effect elec electric field electric force electrified bodies electrodes electromotive force electroscope electrostatic element energy equal equation equilibrium equipotential surface experiment expressed flux given glass Hence india-rubber induction inner surface inside insulated conductor intensity iron Joule's law joules junction knob Leyden jar lines of force machine magnetic magnetising force measured metal needle number of lines outer surface parallel passes Peltier effect perpendicular pith-ball plane plate pole positive electricity positively electrified produced proof-plane proportional quantity of electricity quantity of heat radius represented resistance result solid angle spark sphere strength suppose surface-density temperature terminals thermo-electric tion traversed tubes of force unit V₁ volt wire zero zinc