| Theory Section 1: Magnetism and Electric Current | theory-section | lines 477-909 | 2493 | candidate | magnetism |
| Theory Section 2: Magnetism and E.m.f. | theory-section | lines 910-1032 | 655 | candidate | magnetism |
| Theory Section 3: Generation of E.m.f. | theory-section | lines 1033-1243 | 1121 | candidate | - |
| Theory Section 4: Power and Effective Values | theory-section | lines 1244-1572 | 1522 | candidate | power |
| Theory Section 5: Self-inductance and Mutual Inductance | theory-section | lines 1573-1784 | 1098 | candidate | magnetism |
| Theory Section 6: Self-inductance of Continuous-current Circuits | theory-section | lines 1785-2249 | 1747 | candidate | magnetism |
| Theory Section 7: Inductance in Alternating-current Circuits | theory-section | lines 2250-2717 | 2285 | candidate | alternating-current, magnetism |
| Theory Section 8: Power in Alternating-current Circuits | theory-section | lines 2718-2864 | 823 | candidate | alternating-current, power |
| Theory Section 9: Vector Diagrams | theory-section | lines 2865-3233 | 2005 | candidate | complex-quantities |
| Theory Section 10: Hysteresis and Effective Resistance | theory-section | lines 3234-3585 | 1737 | candidate | hysteresis |
| Theory Section 11: Capacity and Condensers | theory-section | lines 3586-3760 | 785 | candidate | dielectricity |
| Theory Section 12: Impedance of Transmission Lines | theory-section | lines 3761-4464 | 2295 | candidate | impedance-reactance, transmission-lines |
| Theory Section 13: Alternating-current Transformer | theory-section | lines 4465-5263 | 2260 | candidate | alternating-current, magnetism |
| Theory Section 14: Rectangular Coordinates | theory-section | lines 5264-5831 | 2077 | candidate | complex-quantities |
| Theory Section 15: Load Characteristic of Transmission Line | theory-section | lines 5832-6221 | 1063 | candidate | transmission-lines |
| Theory Section 16: Phase Control of Transmission Lines | theory-section | lines 6222-6813 | 2400 | candidate | alternating-current, transmission-lines |
| Theory Section 17: Impedance and Admittance | theory-section | lines 6814-7380 | 1996 | candidate | impedance-reactance |
| Theory Section 18: Equivalent Sine Waves | theory-section | lines 7381-7736 | 1161 | candidate | - |
| Theory Section 19: Fields of Force | theory-section | lines 7737-7990 | 1737 | candidate | fields |
| Theory Section 20: Nomenclature | theory-section | lines 7991-8291 | 334 | candidate | - |
| Apparatus Introduction 21: Introduction | apparatus-introduction | lines 8292-8517 | 1533 | candidate | - |
| Apparatus Section 1: Synchronous Machines: General | apparatus-section | lines 8518-8657 | 929 | candidate | alternating-current, machines |
| Apparatus Section 2: Synchronous Machines: Electromotive Forces | apparatus-section | lines 8658-8740 | 553 | candidate | alternating-current, fields, machines |
| Apparatus Section 3: Synchronous Machines: Armature Reaction | apparatus-section | lines 8741-8906 | 1139 | candidate | alternating-current, magnetism, machines |
| Apparatus Section 4: Synchronous Machines: Self-inductance | apparatus-section | lines 8907-9034 | 673 | candidate | alternating-current, magnetism, machines |
| Apparatus Section 5: Synchronous Machines: Synchronous Reactance | apparatus-section | lines 9035-9169 | 589 | candidate | alternating-current, impedance-reactance, machines |
| Apparatus Section 6: Synchronous Machines: Characteristic Curves of Alternating-current Generator | apparatus-section | lines 9170-9291 | 453 | candidate | alternating-current, machines |
| Apparatus Section 7: Synchronous Machines: Synchronous Motor | apparatus-section | lines 9292-9398 | 556 | candidate | alternating-current, machines |
| Apparatus Section 8: Synchronous Machines: Characteristic Curves of Synchronous Motor | apparatus-section | lines 9399-9553 | 726 | candidate | alternating-current, machines |
| Apparatus Section 9: Synchronous Machines: Magnetic Characteristic or Saturation Curve | apparatus-section | lines 9554-9650 | 574 | candidate | alternating-current, magnetism, machines |
| Apparatus Section 10: Synchronous Machines: Efficiency and Losses | apparatus-section | lines 9651-9718 | 387 | candidate | alternating-current, machines, power |
| Apparatus Section 11: Synchronous Machines: Unbalancing of Polyphase Synchronous Machines | apparatus-section | lines 9719-9748 | 227 | candidate | alternating-current, machines |
| Apparatus Section 12: Synchronous Machines: Starting of Synchronous Motors | apparatus-section | lines 9749-9820 | 535 | candidate | alternating-current, machines |
| Apparatus Section 13: Synchronous Machines: Parallel Operation | apparatus-section | lines 9821-9878 | 495 | candidate | alternating-current, machines |
| Apparatus Section 14: Synchronous Machines: Division of Load in Parallel Operation | apparatus-section | lines 9879-9917 | 323 | candidate | alternating-current, machines |
| Apparatus Section 15: Synchronous Machines: Fluctuating Cross Currents in Parallel Operation | apparatus-section | lines 9918-10123 | 1520 | candidate | alternating-current, machines |
| Apparatus Section 16: Synchronous Machines: Higher Frequency Cross Currents Between Synchronous Machines | apparatus-section | lines 10124-10189 | 548 | candidate | alternating-current, machines |
| Apparatus Section 17: Synchronous Machines: Short-circuit Currents of Alternators | apparatus-section | lines 10190-10429 | 1485 | candidate | alternating-current, machines |
| Apparatus Section 1: Direct-current Commutating Machines: General | apparatus-section | lines 10430-10474 | 253 | candidate | machines |
| Apparatus Subsection 40: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 10475-10519 | 261 | candidate | machines |
| Apparatus Section 2: Direct-current Commutating Machines: Armature Winding | apparatus-section | lines 10520-10585 | 459 | candidate | magnetism, machines |
| Apparatus Subsection 42: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 10586-10645 | 385 | candidate | machines |
| Apparatus Subsection 43: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 10646-10684 | 201 | candidate | machines |
| Apparatus Subsection 44: Direct-current Commutating Machines: C. Commutating Machines 175 | apparatus-subsection | lines 10685-10736 | 372 | candidate | machines |
| Apparatus Subsection 45: Direct-current Commutating Machines: C. Commutating Machines 177 | apparatus-subsection | lines 10737-10777 | 254 | candidate | machines |
| Apparatus Section 3: Direct-current Commutating Machines: Generated E.m.fs. | apparatus-section | lines 10778-10835 | 385 | candidate | machines |
| Apparatus Section 4: Direct-current Commutating Machines: Distribution of Magnetic Flux | apparatus-section | lines 10836-10844 | 58 | candidate | magnetism, machines |
| Apparatus Subsection 48: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 10845-10940 | 456 | candidate | machines |
| Apparatus Subsection 49: Direct-current Commutating Machines: C. Commutating Machines 181 | apparatus-subsection | lines 10941-11024 | 506 | candidate | machines |
| Apparatus Section 5: Direct-current Commutating Machines: Effect of Saturation on Magnetic Distribution | apparatus-section | lines 11025-11046 | 179 | candidate | magnetism, machines |
| Apparatus Subsection 51: Direct-current Commutating Machines: C. Commutating Machines 183 | apparatus-subsection | lines 11047-11125 | 385 | candidate | machines |
| Apparatus Section 6: Direct-current Commutating Machines: Effect of Commutating Poles | apparatus-section | lines 11126-11131 | 28 | candidate | machines |
| Apparatus Subsection 53: Direct-current Commutating Machines: C. Commutating Machines 185 | apparatus-subsection | lines 11132-11213 | 679 | candidate | machines |
| Apparatus Subsection 54: Direct-current Commutating Machines: C. Commutating Machines 187 | apparatus-subsection | lines 11214-11300 | 704 | candidate | machines |
| Apparatus Subsection 55: Direct-current Commutating Machines: C. Commutating Machines 189 | apparatus-subsection | lines 11301-11386 | 621 | candidate | machines |
| Apparatus Section 7: Direct-current Commutating Machines: Effect of Slots on Magnetic Flux | apparatus-section | lines 11387-11400 | 120 | candidate | magnetism, machines |
| Apparatus Subsection 57: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 11401-11540 | 587 | candidate | machines |
| Apparatus Subsection 58: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 11541-11615 | 49 | candidate | machines |
| Apparatus Section 8: Direct-current Commutating Machines: Armature Reaction | apparatus-section | lines 11616-11694 | 495 | candidate | magnetism, machines |
| Apparatus Section 9: Direct-current Commutating Machines: Saturation Curves | apparatus-section | lines 11695-11710 | 115 | candidate | machines |
| Apparatus Subsection 61: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 11711-11773 | 266 | candidate | machines |
| Apparatus Section 10: Direct-current Commutating Machines: Compounding | apparatus-section | lines 11774-11794 | 138 | candidate | machines |
| Apparatus Subsection 63: Direct-current Commutating Machines: C. Commutating Machines 197 | apparatus-subsection | lines 11795-11863 | 542 | candidate | machines |
| Apparatus Section 12: Direct-current Commutating Machines: Efficiency and Losses | apparatus-section | lines 11864-11904 | 234 | candidate | machines, power |
| Apparatus Section 13: Direct-current Commutating Machines: Commutation | apparatus-section | lines 11905-11980 | 563 | candidate | machines |
| Apparatus Subsection 66: Direct-current Commutating Machines: C. Commutating Machines 201 | apparatus-subsection | lines 11981-12083 | 454 | candidate | machines |
| Apparatus Subsection 67: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 12084-12199 | 547 | candidate | machines |
| Apparatus Subsection 68: Direct-current Commutating Machines: C. Commutating Machines 205 | apparatus-subsection | lines 12200-12312 | 498 | candidate | machines |
| Apparatus Section 14: Direct-current Commutating Machines: Types of Commutating Machines | apparatus-section | lines 12313-12318 | 21 | candidate | machines |
| Apparatus Subsection 70: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 12319-12398 | 485 | candidate | machines |
| Apparatus Subsection 71: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 12399-12399 | 4 | candidate | machines |
| Apparatus Subsection 72: Direct-current Commutating Machines: Generators | apparatus-subsection | lines 12400-12491 | 555 | candidate | machines |
| Apparatus Subsection 73: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 12492-12659 | 357 | candidate | machines |
| Apparatus Subsection 74: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 12660-12763 | 345 | candidate | machines |
| Apparatus Subsection 75: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 12764-12779 | 93 | candidate | machines |
| Apparatus Subsection 76: Direct-current Commutating Machines: Motors Shunt Motor | apparatus-subsection | lines 12780-12928 | 472 | candidate | machines |
| Apparatus Subsection 77: Direct-current Commutating Machines: C. Commutating Machines | apparatus-subsection | lines 12929-13007 | 474 | candidate | machines |
| Apparatus Section 15: Direct-current Commutating Machines: Appendix Alternating-current Commutator Motor | apparatus-section | lines 13008-13018 | 63 | candidate | alternating-current, machines |
| Apparatus Subsection 79: Direct-current Commutating Machines: C. Commutating Machines 219 | apparatus-subsection | lines 13019-13119 | 787 | candidate | machines |
| Apparatus Subsection 80: Direct-current Commutating Machines: C. Commutating Machines 221 | apparatus-subsection | lines 13120-13188 | 535 | candidate | machines |
| Apparatus Section 1: Synchronous Converters: General | apparatus-section | lines 13189-13795 | 2268 | candidate | alternating-current, machines |
| Apparatus Section 3: Synchronous Converters: Variation of the Ratio of Electromotive Forces | apparatus-section | lines 13796-13888 | 716 | candidate | alternating-current, fields, machines |
| Apparatus Section 4: Synchronous Converters: Armature Current and Heating | apparatus-section | lines 13889-15160 | 2844 | candidate | alternating-current, magnetism, machines |
| Apparatus Section 5: Synchronous Converters: Armature Reaction | apparatus-section | lines 15161-15475 | 1436 | candidate | alternating-current, magnetism, machines |
| Apparatus Section 6: Synchronous Converters: Reactive Currents and Compounding | apparatus-section | lines 15476-15585 | 905 | candidate | alternating-current, machines |
| Apparatus Section 7: Synchronous Converters: Variable Ratio Converters (“split Pole” Converters) | apparatus-section | lines 15586-15734 | 1149 | candidate | alternating-current, machines |
| Apparatus Section 9: Synchronous Converters: Inverted Converters | apparatus-section | lines 15735-15810 | 610 | candidate | alternating-current, machines |
| Apparatus Section 10: Synchronous Converters: Frequency | apparatus-section | lines 15811-15892 | 610 | candidate | alternating-current, machines |
| Apparatus Section 11: Synchronous Converters: Double-current Generators | apparatus-section | lines 15893-15982 | 730 | candidate | alternating-current, machines |
| Apparatus Section 12: Synchronous Converters: Conclusion | apparatus-section | lines 15983-16064 | 643 | candidate | alternating-current, machines |
| Apparatus Section 13: Synchronous Converters: Direct-current Converter | apparatus-section | lines 16065-16540 | 1986 | candidate | alternating-current, machines |
| Apparatus Section 14: Synchronous Converters: Three-wire Generator and Converter | apparatus-section | lines 16541-16617 | 317 | candidate | alternating-current, machines |
| Apparatus Subsection 93: Synchronous Converters: Three-wire Direct-current Generator | apparatus-subsection | lines 16618-16726 | 762 | candidate | alternating-current, machines |
| Apparatus Subsection 94: Synchronous Converters: Thbee-wire Converter | apparatus-subsection | lines 16727-16803 | 412 | candidate | alternating-current, machines |
| Apparatus Section 1: Alternating-current Transformer: General | apparatus-section | lines 16804-16911 | 602 | candidate | alternating-current, magnetism |
| Apparatus Section 2: Alternating-current Transformer: Excitation | apparatus-section | lines 16912-17026 | 544 | candidate | alternating-current, magnetism |
| Apparatus Section 1: Alternating-current Transformer: Low Core-loss Type, | apparatus-section | lines 17027-17029 | 6 | candidate | alternating-current, magnetism, power |
| Apparatus Section 2: Alternating-current Transformer: Low T*r Loss Type, | apparatus-section | lines 17030-17323 | 517 | candidate | alternating-current, magnetism, power |
| Apparatus Subsection 99: Alternating-current Transformer: Lighting and Power Time | apparatus-subsection | lines 17324-17427 | 79 | candidate | alternating-current, magnetism, power |
| Apparatus Subsection 100: Alternating-current Transformer: Lighting Only | apparatus-subsection | lines 17428-17537 | 229 | candidate | alternating-current, magnetism |
| Apparatus Section 4: Alternating-current Transformer: Regulation | apparatus-section | lines 17538-18397 | 2245 | candidate | alternating-current, magnetism |
| Apparatus Section 5: Alternating-current Transformer: Short-circuit Current | apparatus-section | lines 18398-18460 | 401 | candidate | alternating-current, magnetism |
| Apparatus Section 6: Alternating-current Transformer: Heating and Ventilation | apparatus-section | lines 18461-18520 | 423 | candidate | alternating-current, magnetism |
| Apparatus Section 7: Alternating-current Transformer: Types of Transformers | apparatus-section | lines 18521-18665 | 864 | candidate | alternating-current, magnetism |
| Apparatus Section 8: Alternating-current Transformer: Autotransformer | apparatus-section | lines 18666-18812 | 1005 | candidate | alternating-current, magnetism |
| Apparatus Section 9: Alternating-current Transformer: Reactors | apparatus-section | lines 18813-18948 | 914 | candidate | alternating-current, magnetism |
| Apparatus Section 1: Induction Machines: General | apparatus-section | lines 18949-19165 | 1763 | candidate | machines |
| Apparatus Section 2: Induction Machines: Polyphase Induction Motor | apparatus-section | lines 19166-20427 | 4031 | candidate | alternating-current, machines |
| Apparatus Section 3: Induction Machines: Single -phase Induction Motor | apparatus-section | lines 20428-21157 | 4727 | candidate | alternating-current, machines |
| Apparatus Section 4: Induction Machines: Induction Generator | apparatus-section | lines 21158-21588 | 2580 | candidate | machines |
| Apparatus Section 5: Induction Machines: Induction Booster | apparatus-section | lines 21589-21646 | 419 | candidate | machines |
| Apparatus Section 6: Induction Machines: Phase Converter | apparatus-section | lines 21647-21812 | 991 | candidate | alternating-current, machines |
| Apparatus Section 7: Induction Machines: Frequency Converter or General Alternating-current Transformer | apparatus-section | lines 21813-21922 | 788 | candidate | alternating-current, magnetism, machines |
| Apparatus Section 8: Induction Machines: Concatenation of Induction Motors | apparatus-section | lines 21923-22191 | 1415 | candidate | machines |