INDEX 



Abampere, Definition of, 19 

 Abohm, Definition of, 20 

 Absolute electrometer, The, 152 

 Abvolt, Definition of, 20 

 Alternating current transformer, Elec- 

 tromotive force relations of, 45 

 Ampere, Definition of, 19 

 turn, Definition of, 82 

 Arc, The electric, 287 

 Atomic theory and mechanical theory, 



274 



of the electric spark, 279 

 Attraction of parallel charged plates, 150 



Ballistic galvanometer, The, 124 



Binnacle, The, 105 



Bunched windings and distributed 



windings, 75 



Bushing, Insulating, Condenser type of, 

 148, 190 



Cable insulation, graded, 158 



Maximum electrical stress in, 



173 



Canal rays and cathode rays, 282 

 Velocity of, 292 

 Capacity of a condenser, 124 

 of transmission line, 173 

 Cathode rays and canal rays, 282 

 Velocity of, 292 

 Charge, Electric, 121 



Concentrated, 155 

 Units of, 122 

 Electrostatic unit of, 156 

 Clock diagram models of moving wave 



trains, 231 

 of a standing wave train, 



233 

 Coil, Action of magnetic field upon, 28 



Magnetomotive force of, 78 

 Compass errors, 106-107 



The ship's, 104 

 Concentrated and distributed magnet 



poles, 2 



Conception of electric wave, 251 

 Condenser, Capacity of, 124 



Cylindrical, capacity of, 171 



energy of, 129 



Spherical, capacity of, 170 



The, 123 



type of insulating bushing, 148 



Condenser, type of insulating bushing, 

 190 



Condensers in parallel, 134 

 in series, 134 



Coulomb's law, 4 



Crookes tube, 280 



Current, Decay of, in a circuit, 56 

 Growth of, in a circuit, 54 

 electric, Kinetic energy of, 53 



Curve, Travelling, Equation of, 196 



Decay of current in a circuit, 56 

 Dielectric constant. See Inductivity. 

 hysteresis, 159 

 Inductivity of, 127 

 strength, 132 

 The, 123 

 Differential equation of wave motion, 



196 

 Direct current dynamo, Fundamental 



action of, 41 

 Distortionless line, 226 

 Distortion of wave, 224 

 Distributed and concentrated magnet 



poles, 2 



windings and bunched windings, 75 

 Dynamo, Direct current, Fundamental 

 equation of, 41 



Electrical and mechanical parallels, 193 

 Electric arc, The, 287 



charge and the condenser, 121 

 Concentrated, 155 

 Units of, 122 



current, magnetically defined, 18 

 Mechanical conception of, 252 

 field between co-axial cylinders, 156 

 between concentric spheres, 



154 



Energy and tension of, 153 

 Intensity of, 138 

 Mechanical conception of, 247 

 Tapering, Magnetic action of, 



248 



The, 137 



flux, Definition of, 141 

 images, Method of, 180 

 oscillations and electric waves, 193 

 oscillator, The, 195 



The mechanical conception of, 

 258 



2 97 



