What is Electricity?D. Appleton and Company, 1903 - 315 страници |
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Страница 11
... CELL • • VII . THE GALVANOMETER VIII . THE DYNAMO MACHINE • PAGE • • 1 · • 11 • 25 · 45 • • 57 • • 64 · 86 • 94 • 105 · · • 121 · • • • 141 · · 152 · • 164 • · 171 . 187 · 198 • 215 · 239 IX . - SOURCES OF ELECTRIC POWER X ...
... CELL • • VII . THE GALVANOMETER VIII . THE DYNAMO MACHINE • PAGE • • 1 · • 11 • 25 · 45 • • 57 • • 64 · 86 • 94 • 105 · · • 121 · • • • 141 · · 152 · • 164 • · 171 . 187 · 198 • 215 · 239 IX . - SOURCES OF ELECTRIC POWER X ...
Страница 30
... festations perplex the human mind . They had no conception of the possibility of producing a magnetic condition in iron by means of a wire wrapped around the iron and connected with a voltaic cell ; for the 30 WHAT IS ELECTRICITY ?
... festations perplex the human mind . They had no conception of the possibility of producing a magnetic condition in iron by means of a wire wrapped around the iron and connected with a voltaic cell ; for the 30 WHAT IS ELECTRICITY ?
Страница 31
John Trowbridge. iron and connected with a voltaic cell ; for the principles of electro - magnetism were not ... cells or the dynamo . The question , however , What is magnetism ? is closely allied to the question , What is electricity ...
John Trowbridge. iron and connected with a voltaic cell ; for the principles of electro - magnetism were not ... cells or the dynamo . The question , however , What is magnetism ? is closely allied to the question , What is electricity ...
Страница 63
... suddenly rises or falls . These two terms - farad and henry - have immense im- portance in the subject of alternating currents of elec- tricity . CHAPTER VI . THE VOLTAIC CELL . · Ir is FLOW OF ELECTRICITY IN THE EARTH . 63.
... suddenly rises or falls . These two terms - farad and henry - have immense im- portance in the subject of alternating currents of elec- tricity . CHAPTER VI . THE VOLTAIC CELL . · Ir is FLOW OF ELECTRICITY IN THE EARTH . 63.
Страница 64
John Trowbridge. CHAPTER VI . THE VOLTAIC CELL . · Ir is interesting to reflect that the study of elec- tricity received its greatest primal impulses from two nations so unlike in ... CELL THE GALVANOMETER THE DYNAMO MACHINE PAGE 1 11 25 45.
John Trowbridge. CHAPTER VI . THE VOLTAIC CELL . · Ir is interesting to reflect that the study of elec- tricity received its greatest primal impulses from two nations so unlike in ... CELL THE GALVANOMETER THE DYNAMO MACHINE PAGE 1 11 25 45.
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Често срещани думи и фрази
action alternating current apparatus attraction bodies carbon cathode rays centimetres charged circuit coil of wire conductor connected copper copper wire Crookes tube current of electricity detect direction discharge distance dynamo dynamo machine earth effect elec electric current electric spark electric waves electrical energy electrical machine electro-magnetic electro-magnetic waves electro-motive force employed ether excited experiments Faraday fluid galvanometer glass gravitation horse power Illustrations inch insulated iron J. J. Thomson lamp Leyden jar lines of force lines of magnetic magnetic force manifestations means measure medium metals method mirror molecular molecules motor movement needle obtained ordinary oscillations oxygen pass phenomena phenomenon photograph pipes placed plate polarization pressure produced Prof refraction resistance revolving Ruhmkorff coil self-induction south pole space spark gap spool steam engine storage battery suitable telephone terminals theory tion to-and-fro currents transformations of energy transmitted tric tricity tube velocity vibrations voltaic cell zinc
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Страница 262 - In extending the researches relative to this part of the investigations, a remarkable result was obtained in regard to the distance at which inductive effects are produced by a very small quantity of electricity; a single spark from the prime conductor of the machine, of about an inch long, thrown on the end of a circuit of wire in an upper room, produced an induction sufficiently powerful to magnetize needles in a parallel circuit of wire...
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Страница 199 - Electrical matter differs from common matter in this, that the parts of the latter mutually attract, those of the former mutually repel each other.