An Introduction to the Theory of Electricity: With Numerous Examples

Front Cover
Macmillan and Company, 1885 - Electric power - 326 pages
 

Contents

Principle of Virtual Velocities
12
Definition of Moment of a Force
14
2325 Kinetic and Potential Energy
15
Application to pendulum
16
Illustrations of Potential Energy
18
CHAPTER II
24
Strength of a Field at a point
25
Force expressed as rate of change of Potential
27
The law of inverse squares
28
Calculation of the attraction of a thin circular plate
29
Note on the Method of proof
32
Attraction of a spherical shell on an internal particle
33
Work done against an attracting system
34
Illustration of a single attracting particle
37
Tubes of Force
39
Stokes Theorem
40
Extension to a tube of force
41
Proposition on a Tube of Force cutting through attracting matter
42
Determination of Field by one equipotential surface
43
Potential never discontinuous in free space
44
Potential at great distance from the attracting system
45
CHAPTER III
49
Electrical Quantity and Density
53
Definitions of a Field of Electrical Force
54
Potential constant throughout an Electrified Conductor
56
Strength of Field just outside an Electrified Conductor
57
Property of a Tube of Force passing from a positively to
63
negatively electrified surface
65
CHAPTER IV
79
ART PAGE 101 Electrical condition of two jars brought to different po tentials and united
93
Charge by Cascade
94
Work done in separating the plates of a condenser both being at constant potentials
95
System of Equipotential surfaces
97
Rate of movement of an equipotential surface during charge
98
Attraction of a spheroidal shell on an internal point
99
Potential of spherical shell whose density varies as inverse cube of distance from a fixed point
113
Induction on two concentric spheres with an electrified point between them
116
Geometrical Inversion
118
Definition of electrical Images by inversion
121
Electrified sphere under an electrified particle
123
Electrification of a conductor formed of two spheres inter secting at right angles
124
Electrification of a conductor formed of three spheres inter secting at right angles
125
Electrification of two spheres in contact
127
Applications of inversion to various problems
128
Theory of the Voltaic Cell
148
CHAPTER VI
165
1
185
method
191
197 98
200
Experiment on a broken magnet Intensity of Magnetiza
222
Physical explanation of diamagnetism
228
Energy of a current in a conductor Coefficient of Self
252
Electrical Inertia Equation of energy
260
CHAPTER X
270
ART PAGE 277 Galvanometer Constant for a Galvanometer of a few turns
277
Field of a uniformly magnetized sphere
279
of wire
296
Throw of a galvanometer needle owing to the passage of an instantaneous electric discharge
299
Explanation of Deadbeat Galvanometer
301
Thomsons Current Accumulator
302
2835 Methods of determining the velocity which connects the measures and units in the Electrostatic with those in the Electromagnetic system Conne...
304
CHAPTER XI
313
Cummings experiment and Thomsons reasoning on it
315
Experiments of Thomson and Magnus
316
Measure of Peltier effect
317
Peltier effect in terms of the temperature
318
The E M F and Thermoelectric power of a couple
319
Property of Thermoelectric powers of three metals
320
Properties of the Thermoelectric diagram
321
Unverified assumption in diagram
324

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