Theory Section 3: Generation of E.m.f.
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theoretical Elements of Electrical Engineering |
| Year | 1915 |
| Section ID | theoretical-elements-electrical-engineering-section-03 |
| Location | lines 1033-1243 |
| Status | candidate |
| Word Count | 1002 |
| Equation Candidates In Section | 36 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”i 3. GENERATION OF E.M.F. 15. A closed conductor, convolution or turn, revolving in a magnetic field, passes during each revolution through two positions of maximum inclosure of lines of magnetic force A in Fig. 5, and two positions of zero inclosure of lines of mag- netic force B in Fig. 5. 1 cm.3 refers to a cube whose side is 1 cm., and should not be confused with cu. cm. 12 ELEMENTS OF ELECTRICAL ENGINEERING Thus it cuts during each revolution four times the lines of force inclosed in the position of maximum inclosure. If 3> = the maximum number of lines of force inclosed by the conductor, / = the frequency in revolutions per second or cycles, and n = number of convolutions or turns of the con- ductor, the lines of forceSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Magnetism
Section titled “Magnetism”i 3. GENERATION OF E.M.F. 15. A closed conductor, convolution or turn, revolving in a magnetic field, passes during each revolution through two positions of maximum inclosure of lines of magnetic force A in Fig. 5, and two positions of zero inclosure of lines of mag- netic force B in Fig. 5. 1 cm.3 refers to a cube whose side i ...Field language
Section titled “Field language”i 3. GENERATION OF E.M.F. 15. A closed conductor, convolution or turn, revolving in a magnetic field, passes during each revolution through two positions of maximum inclosure of lines of magnetic force A in Fig. 5, and two positions of zero inclosure of lines of mag- netic force B in Fig. 5. 1 cm.3 refers to a cube whose side is 1 c ...Radiation / light
Section titled “Radiation / light”... 12 ELEMENTS OF ELECTRICAL ENGINEERING Thus it cuts during each revolution four times the lines of force inclosed in the position of maximum inclosure. If 3> = the maximum number of lines of force inclosed by the conductor, / = the frequency in revolutions per second or cycles, and n = number of convolutions or turns of the con- ductor, the lines of force cut per second by the conductor, and thus the average generated e.m.f. is, E = 4 fn$ absolute units, = 4fn3> ID"8 volt ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
|---|---|---|
| Frequency | 4 | seeded |
Chapter-Local Glossary Hits
Section titled “Chapter-Local Glossary Hits”| Term Candidate | Hits In Section | Status |
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| No chapter-local term hits yet | - | - |
Equation Candidates
Section titled “Equation Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
|---|---|---|
theoretical-elements-electrical-engineering-eq-candidate-0094 | 1 cm.3 refers to a cube whose side is 1 cm., and should not be confused | line 1041 |
theoretical-elements-electrical-engineering-eq-candidate-0095 | If 3> = the maximum number of lines of force inclosed by | line 1050 |
theoretical-elements-electrical-engineering-eq-candidate-0096 | E = 4 fn$ absolute units, | line 1056 |
theoretical-elements-electrical-engineering-eq-candidate-0097 | = 4fn3> ID”8 volts. | line 1057 |
theoretical-elements-electrical-engineering-eq-candidate-0098 | E = 4n$ volts. | line 1063 |
theoretical-elements-electrical-engineering-eq-candidate-0099 | T = 90°, or at the position of zero inclosure of magnetic flux | line 1082 |
theoretical-elements-electrical-engineering-eq-candidate-0100 | E = 4 fn& is the average generated e.m.f., | line 1097 |
theoretical-elements-electrical-engineering-eq-candidate-0101 | EQ = 2 irfn& is the maximurft, and | line 1100 |
Figure Candidates
Section titled “Figure Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
|---|---|---|
| No chapter-local candidates yet | - | - |
Hidden-Gem Quote Candidates
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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.
- Radiation / light: Compare the chapter’s radiation vocabulary with modern electromagnetic radiation, spectral frequency, wavelength, absorption, and illumination engineering.
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.