Chapter 3: Iiaw Of Eucctbo-Maonimc Induction
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Alternating Current Phenomena |
| Year | 1897 |
| Section ID | theory-calculation-alternating-current-phenomena-1897-chapter-03 |
| Location | lines 1973-2121 |
| Status | candidate |
| Word Count | 727 |
| Equation Candidates In Section | 12 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER III. IiAW OF EUCCTBO-MAONimC INDUCTION. 11. If an electric conductor moves relatively to a mag- netic field, an E.M.F. is induced in the conductor which is proportional 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 as the E.M.F. induced in a conductor, which cuts 10« = 100,000,000 lines of magnetic force per second. If the conductor is closed upon itself, the induced E.M.F. produces a current. A closed conductor may be called a turn or a convolution. In such a turn,Source-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Magnetism
Section titled “Magnetism”CHAPTER III. IiAW OF EUCCTBO-MAONimC INDUCTION. 11. If an electric conductor moves relatively to a mag- netic field, an E.M.F. is induced in the conductor which is proportional 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 ...Field language
Section titled “Field language”CHAPTER III. IiAW OF EUCCTBO-MAONimC INDUCTION. 11. If an electric conductor moves relatively to a mag- netic field, an E.M.F. is induced in the conductor which is proportional 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 th ...Radiation / light
Section titled “Radiation / light”... flux passes in and out of the turns, during each complete alternation or cycle, — the total flux is cut four times, twice passing into, and twice out of, the turns. / §12] LAW OF ELECTRO-MAGNETIC INDUCTION, 17 Hence, if A^= number of complete cycles per second, or the frequency of the relative alternation of flux ♦, the average E.M.F. induced in ;/ turns is, — wfi'.vf . = 4 // ♦ jy 10 - " volts. This is the fundamental equation of electrical engineer- ing, and applies to continuous-current, as well as to alter- nating-current, apparatus. 12. I ...Impedance / reactance
Section titled “Impedance / reactance”... into the maxi- mum flux, *, produced by a current of / amperes effective, or/V2 amperes maximum, is therefore — and consequently the effective E.M.F. of self-inductance is: = 2 IT NLI volts. The product, jr = 2 irNLy is of the dimension of resistance, and is called the reactance of the circuit ; and the E.M.F. of self-inductance of the circuit, or the reactance voltage, is E = Ix, and lags 90** behind the current, since the current is in phase with the magnetic flux produced by the current, and the E.M.F. lags 90° behind the magnetic flux. The E ...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-1897-eq-candidate-0043 | E.M.F. induced in a conductor, which cuts 10« = 100,000,000 | line 1986 |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0044 | of ’ the flux inclosed by the turns, times 10~*. | line 1999 |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0045 | wfi’.vf . = 4 // ♦ jy 10 - ” volts. | line 2022 |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0046 | machine is jE” = 4«<I>aV10~® volts, independent of the num- | line 2037 |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0047 | ^.^. = 4// <l>7V10-» volts. | line 2045 |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0048 | = 2 7r«4>iV10-»VOltS. | line 2056 |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0049 | E^ft, = V2ir«<l>jyi0-8 | line 2071 |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0050 | = 4.44«*iV^10-8volts, | line 2073 |
Figure Candidates
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|---|---|---|
| No chapter-local candidates yet | - | - |
Hidden-Gem Quote Candidates
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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.
- Impedance / reactance: Translate historical opposition terms into modern impedance, admittance, conductance, susceptance, and complex-plane notation.
- Waves / transmission lines: Map Steinmetz’s wave and line language onto modern distributed constants, propagation velocity, standing waves, and reflections.
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.
- Waves / transmission lines: Standing/traveling wave passages may support richer field interpretations; the page keeps those readings separate from verified Steinmetz wording.
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.