574 



INDEX. 



Potential function, definition of, 144 



of cone, 157 



of cylinder, 158 



of disc, 157 



of ellipsoid, 210 



of polarized distribu- 



tion, 231 

 Potential due to circular current, 418 



due to uniform polarization, 

 234 



,, electrodynamic, 429 



,, energy, 110, 114 



kinetic, 127 



,, logarithmic, 175 



,, magnetic, 352 



mutual, 220 



vector, 433 



,, zero, 259 

 Pot, operator, 153 

 Power absorbed by circuit, 479 

 Poynting's theorem, 517 

 Practical system of units, 416 

 Pressure, 385 



,, perpendicular to lines of force, 



388 

 Principle, d'Alembert's, 107 



Hamilton's, 116 



Kelvin and Dirichlet's, 169 

 Primary circuit, 475 

 Probability integral, 537 

 Problems, Dirichlet's, 169 



Green's, 390 



Problems, uniplanar, 308 

 Projection, Mercator's, 200, 350 



stereographic, 201 



,, of vector, 9 

 Propagation in conductor, 522 



of disturbance, 515 



equation of, 512, 515 

 Pupin, 490, 510 



Quadrant electrometer, 284 

 Quadratic mean, 479 

 Quaternion, 7 

 Quincke, app. 563 



Kadiant vector, 519, 522 

 Kational functions, 14 



numbers, 1 



units, 557 

 Rayleigh, 125, 139, 347, 502, 524 



Reactance, 479 

 Eeaction, 96 

 Eeciprocal distance, 75 



development of in 



spherical har- 

 monics, 189 



,, functions, 123 



theorem in electrostatics, 266 

 Rectangular circuits, 455 

 Reflection by conductor, 525 

 Refraction, index of, 517 



of lines of flow, 327 



Relaxation-distance, 524 

 -time, 399 



,, of induced current, 472 



Reluctance, 369, 453 

 Replenisher, 246, 286 

 Representation, conformal, 83 



,, electric application, 



307 



Residual magnetism, 389 

 Resistance, 333 



,, of linear conductor, 343 



,, magnetic, 360 



Resistivity, 326 

 Resolutions, various, into elementary 



forces, 430 

 Resolved part, 9 

 Resonance, 488, 499, 501 

 Resultant, 23 

 Riemann, 82, 171, 183 

 Right-handed order, 8 

 Rontgen, 556 

 Rotation of vector, 56 

 Routh, 125, 502 

 Rowland, 407, 556 



Sachse, 183 



Sardinia, 536 



Saturation, intensity of, 393 



Saunders, 534, 553 



Savart, 420 



Scalar product, 10 



Scalars, 9 



Schiller, 488 



Secondary circuit, 475 



Series, 97 



,, conductors in, 336 



,, trigonometric, 179 

 Sheet, current, 349 

 vector, 199 



