The Alternate Current Transformer Vol. 2: The Utilisation of Induced Currents (1896) — part 36 of 36

Alternating Currents, 281 Hughes' Induction Balance, 274 Hughes' Induction Bridge, Theory of, 285 Hughes' Sonometer, 276 Hysteresis Curves, 60 Hysteresis Curve of Ganz Transformer, 653 Hysteresis, Dissipation of Energy by, 64 Hysteresis, Magnetic, 59 Hysteresis, Magnetic Variation of, with

Temperature, 68 Hysteresis, Value of, for complete Cycle, 62 Hysteresis, Values o^ for Tarious kinds of

Iron, 63 Impedance, 136 Impedance Diagram, 146 Impedance of Branch Circuits, 163 Impedance to Sudden Rushes of Current,

416 Impressed and Effective Electromotive

Forces, 143 Impulsive Discharges, 399 Impulsive Impedance, 417 Index of Refraction of Various Substances,

350 Induced Currents, 239 Induced Currents, Discovery of, 2 Induced Currents, Duration of, 246, 247 Induced Currents, Duration of, Helmholz's

Researches on, 254 Induced Currents, Felici's Researches on.

243 Induced Currents of Higher Orders, 219 Induced Currents, Investigations on, 226 Induced Currents, Lenz's Researches on,

243 Induced Currents, Magnetic Effect of, 231 Induced Currents, Various Effects of, 230 Inductance, 108, 119 Inductance and Inductive Circuits, 107 Inductance and Inertia, Analogies of, 109 Inductance, Annulment of, by Ca]t)kcity,

189 Inductance Bridge, 116 Inductance, Discovery of, 111

Inductance, Mode of exhibiting, 113 Inductance of Various Circuits, 123 Induction at a Distance, 2 14 Induction Balance, 274, 279 Induction Cuil, Theory of, 232 Induction, Electromotive Force of, 72 Induction, Faraday's Law of, 31 Induction in closed Magnetic Circuits, 36 Induction in open Magnetic Circuits, 37 Induction, Magnetic, 24 Induction Mutual, 211, Induction of Electric Cun*ents, 3 Induction Phenomena in open Circuits.

424 Induction Phenomenon in Dieletrics, 449 Induction, Prevention of, 259 Induction, Willoughby Smith's Researches

o°>261 Inductive Cirouit, 110 "^^

Inductive Circuits, Division of Currenfc

between, 159 Inductive Effects by Leyden Jar Dis- charges, 224 Inductive Effects by Transient Eleotrio

Currents, 222 Initial Conditions at Starting Current, 194 Instantaneous Value of Periodic Current,

135 Integral Calculus, Important Tlieorem in,

90 Intensity of Magnetisation, 42 Interference of Electric Waves, 471 Interference Phenomenon of Electrio

Waves, 464 Iron Ring, Permeability of, 63 Joubert's Instantaneous Contact Maker,520 Kelvin, Lord, on Flow of Alternating

Currents in Conductors, 303 Kunz's Researches on Magnetic Hysteresis.

68 Lemma, Trigonometrical, 161 Lightning Protectors, 403 Light, Velocity of, 358 Line Integral of Magnetic Force, 25 Line of Magnetic Induction, 29, 43 Lines of Force cutting Conductor, 8 Lines of Magnetic Force, 7 Linkage of Circuits and Lines of Magnetio

Induction, 47 Linkages of Magnetic and Conducting Cir- cuits, 49 Lodge, Dr., on Lightning Conductors, 401 Logarithmic Curves, 130 . Magnetic Axis, 13 Magnetic Circuit, 35 Magnetic Circuit, Closed, 38 Magnetic Circuit, Open, 38 Magnetic Cycle, 60

RR

610

INDEX.

Magnetic Force, 43

[Magnetic Force and Magnetic Fields, 13

Magnetic Force at the Centre of a Circular

Current, 18 Magnetic Force in Interior of Circular

Solenoid, 23 Magnetic Force in the Interior of Straight

Solenoid, 20 Mu^netic Force near a Straight Conductor,

Magnetic Hysteresis, 69 Magnetic Induction, 24 Magnetic Induction, Line of, 43 Magnetic Induction, Tube of, 43, 44, 45 Magnetic Induction, Unit of, 30 Magnetic Leakage, 328, 572 Magnetic Leakage, Calculation of, 576 Magnetic Leakage, Causes of, 674 Magnetic Leakage, Kule for, 578 Magnetic Permeability, 27, 39 Magnetic Permeability, Determination of,

Magnetic Potential, 24 Magnetic Keluctance, 40 Magnetic Re^eai'cbes, 56 Magnetic Resistance, 33 Magnetic Resistance, Definition of, 34 Magnetic Resistance, Specific, 34 Magnetic Saturation. 57 Magnetic Screening, 255 Magnetic Screening, Faraday's Experi- ments, 257 fifagnetic Screening, Henry's Experiments

on, 258 Magnetic Screening, Theory of, 270 Magnetisation. Curves of, 51 Magnetisation, Intennity of, 42 Magneto-electric Induction, 6 Magnetomotive Force, 24 Mathematical Sketch of Fourier's Theorem,

89 Maxwell's Mode of shewing Inductance, 116 Maxwell's Theory of the Electromagnetic

Medium, 344 Maxwell's Theory of Molecular Vortices,

339 Mean • Square and Maximum Value of

Periodic Current, Relation of, 137 Mean-Square Value of Ordinate to Curye,

103 Mechanical and Electrical Quantities,

Analogies of, 126 Mechanical Illustrations of the Properties

of the Electromagnetic Medium, 342 Molecular Vortices, 339 Mordey's Alternator, Curve of E.M.F. oL

537 Multiple- valued Function, 82

Mutual and Self Induction, 207

Mutual Induction between Telephone Cir- cuits, 216

Mutual Induction of two Circuits, 173

Mutuil Induction of two Circuits, Theory of. 232

Kon-Inductive Circuit, 110

Open Circuit Transformer, 515

Open Magnetic Circuit, 38

Oscillations of Leyden Jar, 376

Oscillatory and Non- oscillatory Discharge, 379

Oscillatory Disehai^e Experimentally In- vestigated, 381

Periodic Currents, 79

Periodic Currents, Graphic Representation of, 139

Permeability, Curve* of, 65

Permeability Magnetic, 27, 39

Permeability, Magnetic, at Different Temperatures, 56

Permeability, Magnetic, corresponding to various Magnetic Forces, 54

Polar Diagram for Periodic Current«j, 190

Polar Diagram, Important Use of, 193

Power Curves, 150

Power Curves for Induction and Xon- luductive Circuits, 152

Power Factor, 206

Power Factor of Transformers, 566

Power Factor, Relation of, to Secondary Output, 571

Power Factors, Influence of the Form c)t Curve of Electromotive Force on, 568

Power Factors of Various Types of Trans- formers, 567

Power of Periodic Current, Mean Value of, 147

Poynting's Theorem, 483

Propagation of Alternating Currents through Conductors, 292

Propagation of Currents along Conductors,

Propagation of Electromagnetic Energ}*, 481

Ratio of Electromagnetic to Electrostatic Units, 355

Rayleigh, Lord, Induction Bridge devised by, 298

Rayleigh, Lord, InvestigatioiiB on Induc- tion by, 289

Reactance, 146

Reaction of Closed Secondary Circuit on the Primary. 271

Relation of Power Factor to S«oondtry Output, 571

Reluctance, Magnetic, 40

Repulsion, Electromagnetic, 307

INDEX,

611

Besistanoe, Magnetic, 33

Besonance Phenotnenou, 428

Rise of Current in Circuit, 132

Roefisler's Experiments on Transformers. 580

Rotating Coil, Electromotive Force of, 76

Rowland's Experiments on a Rotating Electrified Disc, 367

Screening, Magnetic, 266

Secondary Drop, 572

Secondary Drop Curves of Transformer, 573

Self Induction, 207

Shunted Condenser in Series with Induc- tive Re'tistanoe, 187

Shunted Condenser, Theory of, 396

Side Flashing, 407

Simple Periodic Currents and Electro- motive Forces, 93

Simple Periodic Currents, Theory of, 79

Simple Periodic Curve, 83

Sine Curve, 88

Sine Curve, Mean -Square Ordinate of, 101

Sine Curve, Value of Mean Ordinate of, 93

Single-varied Function, 82

Slow and Quick Cycle Hysteresi.% 65

Solenoid, Magnetic Force in Interior of, 20

Sonometer, 276

Specific Inductive Capacity, 350

Specific Magnetic Resistance, 34

Straight Conductor, Magnetic Forces near a, 15

Sti^ngth of Magnetic Field, 15

Strength of Magnetic Pole, 14

Surface Integral of Induction, 28

Symmetiy of Ciurent and Induction, 329

Symmetry of Transformer Diagrams, 549

Table of Efficiencies of Various Trans- formers, 560

Ta)>les of Specific Inductive Capacity, 351

Telegraphing to Moving Trains, 217

Telephonic Induction, )6\t

Temperature Effect on Hysteresis, 68

Test of Swinboume Hedgehog Trans- former, 565

Teat of a Westinghouse Transformer, 664

Theory of Air- Core Induction Coil, 174

Theory of Experiments on Alternative Path, 413

Theory of Hertz's Experiments, 435

Theory of Induction Balance, 285

Theory of the Transformer, 586

Thomson -Houston Alternator, Curve of E.M.F. of, 536

Time-Constant of Circuit, 131

Time-Con nant of Condenser, 184

Time of Quickest Discharge of Condensir.

386 Transformation Ratio of Transformer, 575 Transformer, Analytical Theory of, 586 Transformer Curves of Current and Elec- tromotive Force, 638, 539, 540 Transformer, Current Diagram of, 561 Transformer Diagrams, 5^. Transformer Diagrams, Description of, 535 Transformer, General Action of, 514 Transformer, General Analytical Theory

of, 686 Transformers, Classification of, 617 Transformers, Efficiency Curves of, 567 Transforniers, Efficiency of, 565 Tttiniiformers, Power Factor of, 666 Transmission of Alternating Current!

tlin)ugh Conductors, 281 Trigonometrical Lemma, 161 Trowbridge's Experiments on Electro- magnetic Waves, 600 Trowbridge's Experiments on the Propaga- tion of Electrical Oscillations, 431 True Power given to Inductive Circuit, 167 Tube of Magnetic Induction, 43 Unit of Inductance, 122 Unit of Magnetic Induction, 30 Value f)f Mean Ordinate Sine Curve, 98 Value ot Mean -Square Ordinate of Sind

Curve, 101 Variable and Steady Flow, 79 Variation of Hysteresis with Temperature,

70 Vectf)r Potential, Explanation of, 360 Vector Quantities, 27 Velocity of Light, 368 Velocity of Propagation of Electromagnetic

Disturbances, 354 Velr)city of Propagation of Electromagnetic

Waves experimentally determined, 611 Velocity of Propagation of Vector Poten- tial, 368 Wattmeter, Correcting Factor of, 168 WacimeterMeasurement of Periodic Power,

166 Wattmeter, Tlieory of, 157 Wave Diagram for Periodic Currents, 192 Waves in Rectilineal' Wires, 468 Westinghouse Transformer, Current Dia- gram of, 662 Westinghouse Transformer, Diagrams of,

544,645 Willoughby Smith's Experiments on Magnetic Screening, 262

-riaesE LiB^;^

-Jill

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