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CONTENTS.
PART I.
Electrostatics.
Description of Phenomena.
Art.
Page
27. Electrification by friction. Electrification is of two kinds, to which the names of Vitreous and Resinous, or Positive and Negative, have been given
30
28. Electrification by induction
31
29. Electrification by conduction. Conductors and insulators
32
30. In electrification by friction the quantity of the positive electrification is equal to that of the negative electrification
33
31. To charge a vessel with a quantity of electricity equal and opposite to that of an excited body
33
32. To discharge a conductor completely into a metallic vessel
34
33. Test of electrification by gold-leaf electroscope
34
34. Electrification, considered as a measurable quantity, may be called Electricity
35
35. Electricity may be treated as a physical quantity
36
36. Theory of Two fluids
37
37. Theory of One fluid
39
38. Measurement of the force between electrified bodies
40
39. Relation between this force and the quantities of electricity
41
40. Variation of the force with the distance
42
41, 42. Definition of the electrostatic unit of electricity.—Its dimensions
42
43. Proof of the law of electric force
43
44. Electric field
44
45. Electric potential
45
46. Equipotential surfaces. Example of their use in reasoning about electricity
45
47. Lines of force
47
48. Electric tension
47
49. Electromotive force
47
50. Capacity of a conductor
48
51. Properties of bodies.—Resistance
48
