Theory Section 1: Magnetism and Electric Current
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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-01 |
| Location | lines 477-909 |
| Status | candidate |
| Word Count | 2193 |
| Equation Candidates In Section | 63 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”1. MAGNETISM AND ELECTRIC CURRENT 1. A magnet pole attracting (or repelling) another magnet pole of equal strength at unit distance with unit force1 is called a unit magnet pole. The space surrounding a magnet pole is called a magnetic field of force, or magnetic field. The magnetic field at unit distance from a unit magnet pole is called a unit magnetic field, and is represented by one line of magnetic force (or shortly "one line") per square centimeter, and from a unit magnet pole thus issue a total of 4 TT lines of magnetic force. The total number of lines of force issuing from a magnet pole is called its magnetic flux. The magnetic flux $ of a magnet pole of strength m is, <£ = 4 irm. At the distance I from aSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Magnetism
Section titled “Magnetism”1. MAGNETISM AND ELECTRIC CURRENT 1. A magnet pole attracting (or repelling) another magnet pole of equal strength at unit distance with unit force1 is called a unit magnet pole. The space surrounding a magnet pole is called a magnetic field of forc ...Field language
Section titled “Field language”1. MAGNETISM AND ELECTRIC CURRENT 1. A magnet pole attracting (or repelling) another magnet pole of equal strength at unit distance with unit force1 is called a unit magnet pole. The space surrounding a magnet pole is called a magnetic field of force, or magnetic field. The magnetic field at unit distance from a unit magnet pole is called a unit magnetic field, and is represented by one line of magnetic force (or shortly "one line") per square centimeter, and from a unit m ...Complex quantities
Section titled “Complex quantities”... one ampere. 3. One ampere in an electric circuit or turn, that is, one ampere-turn, thus produces in a magnetic circuit of unit length the field intensity 0.4 w, and in a magnetic circuit of length 0.4 TT I the field intensity — '-j — , and F ampere-turns produce in a magnetic circuit of length I the field intensity: „ 0.4 irFv tf H = — j — lines of force per sq. cm. MAGNETISM AND ELECTRIC CURRENT 3 regardless whether the F ampere-turns are due to ...Ether references
Section titled “Ether references”... 0.4 TT I the field intensity — '-j — , and F ampere-turns produce in a magnetic circuit of length I the field intensity: „ 0.4 irFv tf H = — j — lines of force per sq. cm. MAGNETISM AND ELECTRIC CURRENT 3 regardless whether the F ampere-turns are due to F amperes F in a single turn, or 1 amp. in F turns, or — amperes in n turns. F, that is, the product of amperes and turns, is called magneto- motive force (m.m.f.). The m.m.f. per unit length of magn ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
|---|---|---|
| Magnetic permeability | 7 | seeded |
| Ether | 2 | seeded |
| Light | 1 | seeded |
Chapter-Local Glossary Hits
Section titled “Chapter-Local Glossary Hits”| Term Candidate | Hits In Section | Status |
|---|---|---|
| ether | 2 | seeded |
Equation Candidates
Section titled “Equation Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
|---|---|---|
theoretical-elements-electrical-engineering-eq-candidate-0014 | pole of equal strength at unit distance with unit force1 is called | line 480 |
theoretical-elements-electrical-engineering-eq-candidate-0015 | <£ = 4 irm. | line 497 |
theoretical-elements-electrical-engineering-eq-candidate-0016 | therefore of flux $> = 4 xw, assuming a uniform distribution in | line 500 |
theoretical-elements-electrical-engineering-eq-candidate-0017 | since the 3> lines issuing from the pole distribute over the area | line 506 |
theoretical-elements-electrical-engineering-eq-candidate-0018 | 1 That is, at 1 cm. distance with such force as to give to the mass of 1 gram | line 518 |
theoretical-elements-electrical-engineering-eq-candidate-0019 | the acceleration of 1 cm. per second. | line 519 |
theoretical-elements-electrical-engineering-eq-candidate-0020 | intensity is ~ — — 2, and in the distance 2 the field intensity | line 561 |
theoretical-elements-electrical-engineering-eq-candidate-0021 | affect its magnetic field, produces field intensity 2 in unit distance | line 565 |
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 |
|---|---|---|
| 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.
- Complex quantities: Track how Steinmetz preserves geometric rotation and quadrature while translating the same operation into symbolic form.
- Ether references: Verify exact wording before drawing conclusions. Ether language must be separated from later interpretive systems.
- 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.
- Ether references: If Steinmetz mentions ether, quote only the verified source words first; any broader ether-field synthesis belongs in a labeled interpretive layer.
- 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.