Index 



533 



Crystalline dielectrics, propagation of light 

 in, 528 



Currents, electric conduction, 295, 495 

 ,, displacement, 495, 509 

 ,, in linear conductors, 295, 441 

 ,, in continuous conductors, 330, 462 

 ,, magnetic field produced by, 414 



Current-sheets, 469 



Curvilinear coordinates, 238 



Cylindrical conductors and condensers, 67, 

 73, 262 



D'Arsonval galvanometer, 425 

 Declination, magnetic, 389 

 Diamagnetism, 398, 493 

 Dielectric media, 74, 115 



,, crystalline, 133, 150, 528 



,, mechanical force on, 169 



,, stresses in, 173 



,, images in, 196 



,, passage of electricity through a, 347 



,, time of relaxation of, 348 

 Dip, magnetic, 389 

 Discharge of a condenser, 321, 349, 447, 486 



of an electric system, energy of, 



83, 94 

 Displacement, in a dielectric, 117 



,, theory of Maxwell, 151 



,, currents of Maxwell, 495, 509 



Dissipation of magnetic field in a conductor, 



467 



Doublet, electric, 50, 212 

 Dynamical theory of electric currents, 474 

 Dynamo, action of, 447, 453 



Earnshaw's Theorem, 165 



Electrical charges, attraction and repulsion 



of, 10 



doublet, 50, 212 



,, measurements, see measurements 

 ,, screening, 97 

 Electricity, generation of, 9 



,, theories to explain, 19 

 Electrification by friction, 1, 5 

 ,, by induction, 16 



,, line of no, 88, 190 



Electrokinetic momentum, 486 

 Electromagnetic mass, 509, 526 



theory of light, 3, 507, 513 

 units, 416, 517 

 ,, waves, velocity of propagation 



of, 506 



Electrometers, 105 

 Electromotive force, 298, 442 



Electron, mass and size of, 20, 510 

 ,, energy of motion of, 510, 526 

 theory of electrical phenomena, 20, 



139, 310, 332, 493, 510, 526, 528 

 Electrophorus, 17 

 Electroscope, gold-leaf, 7, 17 

 Electrostriction, 179 



Ellipsoid, distribution of electricity on, 241, 248 

 Ellipsoidal harmonics, 246 

 Elliptic cylinders, distribution of electricity 



on, 265 



,, disc, distribution of electricity on, 244 



Energy of conductors and condensers, 83, 94 



in the medium (electrostatic), 149, 



160, 164 

 ,, in the medium (magnetic), 387, 403, 



432, 483 

 ,, of a magnetic particle in a field of 



force, 366 

 ,, of a magnetic shell in a field of 



force, 369 



,, of any magnetised body, 370 

 ,, of a magnetic field, 384, 403, 483, 491 

 s , of a system of currents, 432, 483, 491, 



526 



,, of light- waves, 530 

 Equilibrium, points of, 59 

 Equipotential surfaces, 29, 56, 59, 359 

 Equivalent stratum (Green's), 179, 350, 364 

 Expansions in sines and cosines, 255 

 ,, in harmonics, 207 

 ,, in Legendre's coefficients, 220 



Faraday, 2, 115 



theory of dielectric action, 126 



Fields of force, examples of, 47, 182, 187, 189, 

 225 



Finite current-sheets, 471 



Force, lines of, 25, 56, 359 



magnetic, inside a magnetised body, 370 

 ,, (mechanical), see Mechanical Force 



Fourier's Theorem, 255 



Galvanometers, 422 



Gases, inductive capacity of, 132 

 ,, velocity of light in, 514 



Gauss' Theorem, 33, 118, 359 



Generalised coordinates, 478 



Generation of electricity, 9 



of heat in conductors, 309, 337 



Green, reciprocation theorem of, 92, 161 

 ,, analytical theorem of, 154, 158 

 equivalent stratum of, 179, 350, 364 



Guard-ring, 78 



