Chapter 6: Magnetism
Research workbench, not a finished commentary page.
This page is generated from processed source text and candidate catalogs. It exists to help researchers decide what to verify, promote, and deeply decode next.
Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Electric Circuits |
| Year | 1917 |
| Section ID | theory-calculation-electric-circuits-chapter-06 |
| Location | lines 11051-12221 |
| Status | candidate |
| Word Count | 4468 |
| Equation Candidates In Section | 44 |
| Figure Candidates In Section | 1 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER VI MAGNETISM MECHANICAL FORCES 1. General 61. Mechanical forces appear wherever magnetic fields act on electric currents. The work done by all electric motors is the result of these forces. In electric generators, they oppose the driving power and thereby consume the power which finds its equivalent in the electric power output. The motions produced by the electromagnet are due to these forces. Between the primary and the secondary coils of the transformer, between conductor and return conductor of an electric circuit, etc., such mechanical forces appear. The electromagnet, and all electrodynamic machinery, are based on the use of these mechanical forces between electric conductors and magnetic fields. So also is that type of trans- former which transforms constant alternating voltage into con- stant alternating current. In most other cases, however, these mechanical forcesSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Magnetism
Section titled “Magnetism”CHAPTER VI MAGNETISM MECHANICAL FORCES 1. General 61. Mechanical forces appear wherever magnetic fields act on electric currents. The work done by all electric motors is the result of these forces. In electric generators, they oppose the driving power and thereby consume the power which fin ...Impedance / reactance
Section titled “Impedance / reactance”... the pull, and the pull or force of the electromagnet pulsates with double frequency between and 2F. 63. In the alternating-current electromagnet usually the vol- tage consumed by the resistance of the winding, tV, can be neglected compared with the voltage consumed by the reactance of the winding, ioXy and the latter, therefore, is practically equal to the terminal voltage, e, of the electromagnet. We have then, by the general equation of self-induction, e = 27r fLio (20) 96 ELECTRIC CIRCUITS where / = frequency, in cycles per second. From which ...Field language
Section titled “Field language”CHAPTER VI MAGNETISM MECHANICAL FORCES 1. General 61. Mechanical forces appear wherever magnetic fields act on electric currents. The work done by all electric motors is the result of these forces. In electric generators, they oppose the driving power and thereby consume the power which finds its equivalent in the electric power output. The motions produced by the electromag ...Alternating current
Section titled “Alternating current”CHAPTER VI MAGNETISM MECHANICAL FORCES 1. General 61. Mechanical forces appear wherever magnetic fields act on electric currents. The work done by all electric motors is the result of these forces. In electric generators, they oppose the driving power and thereby consume the power which finds its equivalent in the electric power output. The motions produced by the electromagnet ar ...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-electric-circuits-eq-candidate-0257 | energy produced, + increase of the stored magnetic energy. (1) | line 11124 |
theory-calculation-electric-circuits-eq-candidate-0258 | mechanical energy t^o =Fl by (1), and therefrom the mechanical | line 11137 |
theory-calculation-electric-circuits-eq-candidate-0259 | 2. The Constant-current Electromagnet | line 11175 |
theory-calculation-electric-circuits-eq-candidate-0260 | to its final position 2,1 = the length of this motion, or the stroke | line 11183 |
theory-calculation-electric-circuits-eq-candidate-0261 | L=-^10-8 (2) | line 11189 |
theory-calculation-electric-circuits-eq-candidate-0262 | $, = Mil 108 (3) | line 11196 |
theory-calculation-electric-circuits-eq-candidate-0263 | ^, = 12^ 108 (4) | line 11203 |
theory-calculation-electric-circuits-eq-candidate-0264 | e’ = n_lO« = t.^ (5) | line 11214 |
Figure Candidates
Section titled “Figure Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
|---|---|---|
theory-calculation-electric-circuits-fig-045 | density is uniform for the width lo between the coil surfaces, Fig. 45. and then decreases toward the interior of the coils, over the dis- tance K respectively ^, to zero at the… | line 11784 |
Hidden-Gem Quote Candidates
Section titled “Hidden-Gem Quote Candidates”| Candidate ID | Candidate Passage | Source Location |
|---|---|---|
| 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.
- Impedance / reactance: Translate historical opposition terms into modern impedance, admittance, conductance, susceptance, and complex-plane notation.
- 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.
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.