Elementary Treatise on Electricity and MagnetismLongmans, Green, and Company, 1896 - 576 páginas |
Dentro del libro
Resultados 1-5 de 84
Página xi
... increase of charge . 88. Frictional machines . 89. Unit jar . 90. Inductive machines - Thomson's replenisher . 91. Holtz's machine . 92. Diametral conductor . 93. Voss's machine . 94 . Wimshurst's machine . 95. Yield and energy of a ...
... increase of charge . 88. Frictional machines . 89. Unit jar . 90. Inductive machines - Thomson's replenisher . 91. Holtz's machine . 92. Diametral conductor . 93. Voss's machine . 94 . Wimshurst's machine . 95. Yield and energy of a ...
Página 4
... increase or decrease . In consequence of their use for preventing the communication of electrification , non - conducting bodies are often spoken of as insu- lators . No more perfect insulator is obtainable than air , if there is a ...
... increase or decrease . In consequence of their use for preventing the communication of electrification , non - conducting bodies are often spoken of as insu- lators . No more perfect insulator is obtainable than air , if there is a ...
Página 11
... increase the twist of the wire , is if cos Hence , putting C for a 2 B FIG . 8 . the couple required to keep the wire twisted through unit angle , T or lf cos 2 = C ( A + a ) α α 2 2 fd2 = 4 Cl ( A + a ) sin tan As above stated , this ...
... increase the twist of the wire , is if cos Hence , putting C for a 2 B FIG . 8 . the couple required to keep the wire twisted through unit angle , T or lf cos 2 = C ( A + a ) α α 2 2 fd2 = 4 Cl ( A + a ) sin tan As above stated , this ...
Página 13
... increase or decrease taking place on the whole . A point of considerable importance in connection with the sharing of electrification between two or more conductors is , that the ratio in which a given quantity divides itself among them ...
... increase or decrease taking place on the whole . A point of considerable importance in connection with the sharing of electrification between two or more conductors is , that the ratio in which a given quantity divides itself among them ...
Página 20
... increased by as much as was on the ball when put in . C ellele FIG . 13 . E B In this way an electroscope connected with the hollow con- ductor can be graduated , if a scale is placed behind the gold - leaves , and the divergence pro ...
... increased by as much as was on the ball when put in . C ellele FIG . 13 . E B In this way an electroscope connected with the hollow con- ductor can be graduated , if a scale is placed behind the gold - leaves , and the divergence pro ...
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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.