Magnetic Fields of Force: An Exposition of the Phenomena of Magnetism, Electro-magnetism, and Induction Based on the Conception of Lines of Force, Volumen1

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Longmans, Green, and Company, 1897

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Contenido

Magnetic permeability of different substances
14
Natural magnets fitted with polepieces
15
The keeper C Artificial magnets of various forms and their fields
16
Communication of magnetic properties to steel
17
Production of artificial magnets
18
Immaterial nature of magnetism 21 Bar magnets
20
Compound magnets
23
Magnets of special forms
24
The horseshoe magnet
25
Magnets with one degree of freedom
29
B Mechanical action between two movable magnets
39
CHAPTER III
54
PAGE B Magnetism as an extraterrestrial influence 50 Influence of the sun on the magnetic elements of the earth
72
Magnetic theory of the suns corona
73
Influence of the moon on terrestrial magnetism
74
CHAPTER IV
76
the centimetregramsecond system
78
the dyne
79
Measurement of magnetic attractions in dynes by means of the balance
80
Dimensions of physical quantities dimensions of force 60 Decrease of magnetic effect with increase of distance
81
The Newtonian law of universal attraction
82
Strength of pole
83
Unit strength of pole
85
Dimensions of strength of pole
86
Determination of strength of pole in absolute measure
87
Conception and measurement of strength of field
88
Mechanical force exerted upon a pole of determinate strength by a field of given intensity
89
Dimensions of fieldintensity
90
Number of lines of force proceeding from a pole of given strength
91
Deflection of a declination needle by a bar magnet
92
Couples acting upon a magnetic needle in a uniform field
93
Comparison of fieldintensities by the method of oscillations
94
Quantities which determine the period of oscillation of a needle
95
Determination of fieldintensities in absolute measure by oscillations
96
Determination of magnetic moments in absolute measure by oscillations 79 Determination of the horizontal component of the earths magnetic field i...
97

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