The Electron Theory of Matter |
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absorption aether angle arising atomic weight axes axis centre Chap circuit coefficient components conductor consider constant corresponding deflexion density dielectric direction displacement distance doublet effect electric charge electric field electric intensity electromagnetic electromagnetic mass electromotive force electronegative electrostatic element of volume emission emitted equal equation equilibrium ferromagnetic formula frequency function given H₂ induction integral J. J. Thomson kinetic energy large number lines magnetic field magnetic force magnetic intensity mass medium metals molecules momentum motion moving negative electrons normal number of electrons orbit particles perpendicular phenomena Phil plane polarization positive potential energy proportional quantity radiation rays refractive refractive index spectral spectral lines sphere substances suppose surface temperature theory unit volume vector vibrations wave-length waves Zeeman effect zero дг ду дх მყ
Popular passages
Page 212 - An electromagnetic wave in space has both an electric and a magnetic field intensity which are at right angles to each other and to the direction of propagation of the wave. The two field intensities are related to each other by &
Page 161 - ... the quantities of polarized light in the reflected and refracted pencils are equal, whatever be the incidence. In the case of perpendicular incidence, these formulae are both reduced to the simple expression obtained by Young and Poisson; and when the incidence is 90°, or the ray grazes the surface, the intensity of the reflected light is equal to that of the incident, or the whole of the light is reflected, whatever be the reflecting medium. The latter conclusion has been verified by the observation...
Page 399 - Properties whose magnitude depends only on the initial and final states of the system, and not on the path of the change (how the change was accomplished), are known as state functions.
Page 426 - PELTIER EFFECT. When an electric current flows across the junction between two different metals or semiconductors, a quantity of heat, proportional to the total electric charge crossing the junction, is evolved or absorbed, depending on the direction of the current. This effect is due to the existence of an electromotive force at the junction.
Page 414 - ... between u and u + du, v and v + dv, and w and iu + dw. In this discussion we mean, of course, by the expression the number " at any point " x,y, z the number in an infinitesimal element of volume dr=dxdydz which contains the point x, y, z.
Page 580 - On the whole the evidence seems to be in favour of the elementary diatomic molecules containing oppositely charged as opposed to neutral atoms.
Page 12 - In the previous chapter we have stated that the force between two charged bodies of sufficiently minute size is proportional to the product of their charges divided by the square of the distance between them.
Page 434 - Effect. When an electric current flows across the lines of force of a magnetic field an electromotive force is observed which is at right angles to both the primary current and the magnetic field.
Page 550 - The difference in the refractive indices of the ordinary and extraordinary rays is proportional to the square of the applied electric intensity.
Page 490 - The deflexion of a negatively electrified particle in passing through the atom is ascribed to two causes — (1) the repulsion of the corpuscles distributed through the atom, and (2) the attraction of the positive electricity in the atom. The deflexion of the particle in passing through the atom is supposed to be small, while the average deflexion after a large number m of encounters was taken as \/m . 0, where 6 is the average deflexion due to a single atom.