Elementary Treatise on Electricity and MagnetismLongmans, Green, and Company, 1896 - 576 páginas |
Dentro del libro
Resultados 1-5 de 85
Página 6
... taken and rubbed together two and two , it is possible to arrange them in consecutive order , so that each one becomes positive when rubbed against one of those that follow it in the series , and negative when rubbed against one of ...
... taken and rubbed together two and two , it is possible to arrange them in consecutive order , so that each one becomes positive when rubbed against one of those that follow it in the series , and negative when rubbed against one of ...
Página 14
... taken into account in the case of air . It is treated as having the merely numerical value unity ; and therefore , as not affecting the value of any expression into which it enters as a factor , it is very commonly omitted altogether ...
... taken into account in the case of air . It is treated as having the merely numerical value unity ; and therefore , as not affecting the value of any expression into which it enters as a factor , it is very commonly omitted altogether ...
Página 16
... taken smaller and smaller , but always so as to contain the point in question . This is expressed by writing for the density at a point p = dq / dv . In the same way , if a quantity q of electricity exists on a surface of areas , the ...
... taken smaller and smaller , but always so as to contain the point in question . This is expressed by writing for the density at a point p = dq / dv . In the same way , if a quantity q of electricity exists on a surface of areas , the ...
Página 18
... taken up by the latter is directly pro- portional to the surface - density . 14. The Charge of a Conductor in Electrical Equilibrium is purely Superficial : in other words , An Electric Field does not penetrate the Surfaces of the ...
... taken up by the latter is directly pro- portional to the surface - density . 14. The Charge of a Conductor in Electrical Equilibrium is purely Superficial : in other words , An Electric Field does not penetrate the Surfaces of the ...
Página 39
... taken as a fact proved experimentally that ordinary matter as such is not acted upon by electric force , which acts only between different quantities of electricity . If a pith - ball pendulum is used to illustrate electric attraction ...
... taken as a fact proved experimentally that ordinary matter as such is not acted upon by electric force , which acts only between different quantities of electricity . If a pith - ball pendulum is used to illustrate electric attraction ...
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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 ampere angle axis ball battery boundary capacity cell centre charge chemical circuit coating coefficient condenser conducting connected consequently constant copper corresponding coulomb cylinder density dielectric difference of potentials discharge distance effect elec electric field electric force electrified body electrodes electromotive force electroscope element energy equal equation equilibrium equipotential surface experiment expressed external flux formula given glass Hence india-rubber induction inside insulated conductor intensity iron Joule's law joules junction knob Leyden jar lines of force machine magnetic magnetisation measured metal needle negative number of lines opposite direction outer surface parallel passes Peltier effect perpendicular plane plate pole positive electricity produced proportional quantity of electricity quantity of heat represented resistance result solid angle spark sphere strength suppose surface-density T₁ temperature terminals thermo-electric traversed tubes of force unit V₁ V₂ volt wire zinc
Pasajes populares
Página 458 - As a unit of resistance, the international Ohm. which is based upon the ohm equal to 109 units of resistance of the CGS system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grammes in mass, of a constant cross-sectional area, and of a length of 106.3 centimetres.