Chapter 3: Law Of Electromagnetic Induction
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Alternating Current Phenomena |
| Year | 1916 |
| Section ID | theory-calculation-alternating-current-phenomena-chapter-03 |
| Location | lines 2012-2148 |
| Status | candidate |
| Word Count | 727 |
| Equation Candidates In Section | 14 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER III LAW OF ELECTROMAGNETIC INDUCTION 13. If an electric conductor moves relatively to a magnetic field, an e.m.f. is generated in the conductor which is propor- tional to the intensity of the magnetic field, to the length of the conductor, and to the speed of its motion perpendicular to the magnetic field and the direction of the conductor; or, in other words, proportional to the number of lines of magnetic force cut per second by the conductor. As a practical unit of e.m.f., the volt is defined by the e.m.f. generated in a conductor, which cuts 10^ = 100,000,000 lines of magnetic flux per second. If the conductor is closed upon itself, the e.m.f. produces a current. A closed conductor may be called a turn or a convolution. In such a turn, the numberSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Magnetism
Section titled “Magnetism”CHAPTER III LAW OF ELECTROMAGNETIC INDUCTION 13. If an electric conductor moves relatively to a magnetic field, an e.m.f. is generated in the conductor which is propor- tional to the intensity of the magnetic field, to the length of the conductor, and to the speed of its motion perpendicular to the magnetic ...Field language
Section titled “Field language”CHAPTER III LAW OF ELECTROMAGNETIC INDUCTION 13. If an electric conductor moves relatively to a magnetic field, an e.m.f. is generated in the conductor which is propor- tional to the intensity of the magnetic field, to the length of the conductor, and to the speed of its motion perpendicular to the magnetic field and the direction of the conductor; or, in other words, proportional to ...Alternating current
Section titled “Alternating current”... y of the magnetic field, to the length of the conductor, and to the speed of its motion perpendicular to the magnetic field and the direction of the conductor; or, in other words, proportional to the number of lines of magnetic force cut per second by the conductor. As a practical unit of e.m.f., the volt is defined by the e.m.f. generated in a conductor, which cuts 10^ = 100,000,000 lines of magnetic flux per second. If the conductor is closed upon itself, the e.m.f. produces a current. A closed conductor may be called a turn or a convolution. ...Radiation / light
Section titled “Radiation / light”... s, when the turns either revolve through the flux or the flux passes in and out of the turns — the total flux is cut four times during each complete period or cycle, twice passing into, and twice out of, the turns. Hence, if / = number of complete cycles per second, or the frequency of the flux, $, the average e.m.f. generated in n turns is Eavg. = 4 71$/ 10-« volts. This is the fundamental equation of electrical engineering, and applies to continuous-current, as well as to alternating- current, apparatus. 16 LAW OF ELECTROMAGNETIC INDUCTION 17 ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
|---|---|---|
| Frequency | 3 | seeded |
| Ether | 1 | seeded |
Chapter-Local Glossary Hits
Section titled “Chapter-Local Glossary Hits”| Term Candidate | Hits In Section | Status |
|---|---|---|
| ether | 1 | seeded |
Equation Candidates
Section titled “Equation Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
|---|---|---|
theory-calculation-alternating-current-phenomena-eq-candidate-0052 | generated in a conductor, which cuts 10^ = 100,000,000 lines of | line 2024 |
theory-calculation-alternating-current-phenomena-eq-candidate-0053 | by the turns, times 10~^. | line 2037 |
theory-calculation-alternating-current-phenomena-eq-candidate-0054 | Eavg. = 4 71$/ 10-« volts. | line 2052 |
theory-calculation-alternating-current-phenomena-eq-candidate-0055 | E = 4/i$/10~^ volts, independent of the number of poles, of | line 2073 |
theory-calculation-alternating-current-phenomena-eq-candidate-0056 | Eavg. = 4:7l^f lO’S VOltS. | line 2081 |
theory-calculation-alternating-current-phenomena-eq-candidate-0057 | ^max. = 2 7rW$/ 10-8 volts. | line 2086 |
theory-calculation-alternating-current-phenomena-eq-candidate-0058 | Eeff. = V2 wn^f 10-^ | line 2104 |
theory-calculation-alternating-current-phenomena-eq-candidate-0059 | = 4.44 nf^ 10-« volts, | line 2106 |
Figure Candidates
Section titled “Figure Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
|---|---|---|
| No chapter-local candidates yet | - | - |
Hidden-Gem Quote Candidates
Section titled “Hidden-Gem Quote Candidates”| Candidate ID | Candidate Passage | Source Location |
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| No chapter-local candidates yet | - | - |
Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- Magnetism: Track flux, reluctance, permeability, magnetizing force, and loss language against modern magnetic-circuit terminology.
- Field language: Read for whether field language is mechanical, geometrical, causal, descriptive, or simply a convenient engineering model.
- Alternating current: Compare Steinmetz’s AC language with modern sinusoidal steady-state analysis, RMS quantities, phase, and phasor notation.
- Radiation / light: Compare the chapter’s radiation vocabulary with modern electromagnetic radiation, spectral frequency, wavelength, absorption, and illumination engineering.
- Impedance / reactance: Translate historical opposition terms into modern impedance, admittance, conductance, susceptance, and complex-plane notation.
Ether-Field Interpretive Boundary
Section titled “Ether-Field Interpretive Boundary”- Magnetism: Centrifugal/divergent magnetic-field readings are interpretive overlays, not automatic historical claims.
- Field language: Field-pressure or field-gradient interpretations can be explored here only after the explicit source passage and modern engineering translation are kept distinct.
- Radiation / light: Radiation and wave language can invite ether-field comparison, but source wording, modern radiation theory, and speculative synthesis must stay separated.
Promotion Checklist
Section titled “Promotion Checklist”- Open the full source text and the scan or raw PDF.
- Verify the chapter boundary and surrounding context.
- Promote exact quotations only after checking the source image.
- Move mathematical candidates into canonical equation pages only after formula typography is corrected.
- Move diagram candidates into the diagram archive only after image extraction, crop verification, and manifest creation.
- Keep Steinmetz wording, modern translation, and ether-field interpretation in separate labeled layers.