Nelson's Encyclopaedia: Everybody's Book of Reference ...Thomas Nelson, 1907 |
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الصفحة 180
... voltage of the supply , E , is the generated or in- ternal counter - voltage , and R is the resistance . Should the speed reach a point where the impressed and internally generated voltages are equal , no current would flow . What ...
... voltage of the supply , E , is the generated or in- ternal counter - voltage , and R is the resistance . Should the speed reach a point where the impressed and internally generated voltages are equal , no current would flow . What ...
الصفحة 181
... voltage do not occur simultaneously . One of the earliest successful dynamos was that introduced by Siemens in 1856 , and known as the shuttle armature machine , in which the armature loops were wound in two deep slots cut along the ...
... voltage do not occur simultaneously . One of the earliest successful dynamos was that introduced by Siemens in 1856 , and known as the shuttle armature machine , in which the armature loops were wound in two deep slots cut along the ...
الصفحة 182
... voltage and current are in phase the reaction causes a cross field which distorts the pole flux , as noted for direct - current ma- chines . If the current lags be- hind the voltage , the maximum value of current comes when the coil has ...
... voltage and current are in phase the reaction causes a cross field which distorts the pole flux , as noted for direct - current ma- chines . If the current lags be- hind the voltage , the maximum value of current comes when the coil has ...
الصفحة 183
... voltage and magnetizing force in dynamo may be obtained by running the machine on open cir- cuit at a constant speed , and noting and plotting the different voltages with different values of The the exciting graph so obtained is called ...
... voltage and magnetizing force in dynamo may be obtained by running the machine on open cir- cuit at a constant speed , and noting and plotting the different voltages with different values of The the exciting graph so obtained is called ...
الصفحة 185
... voltage , much like the shunt - wound direct - cur- rent dynamo . Voltage drop with increasing load is due to ordinary resistance , to inductance , and to armature reaction . These effects have already been discussed . In central ...
... voltage , much like the shunt - wound direct - cur- rent dynamo . Voltage drop with increasing load is due to ordinary resistance , to inductance , and to armature reaction . These effects have already been discussed . In central ...
عبارات ومصطلحات مألوفة
acid alternating current American amperes anode arc lamp armature became body born British carbon cent century chief Church circuit coil College color conductor connected Consult copper county seat court Denmark deposit developed Dictionary direct current earth earthquake East educa effect Egypt elec electric electrodes electrolytic energy England English eral faradic feet field force France French galvanometer German Greek heat important India insulation iron king known lamps land later light lished machine magnetic manufacture ment metal method miles motor National North operation Paris passed produced professor rail Railroad railway resistance River Roman Russia schools Scotland solution South square miles surface tain tion tional tive town tricity tube ture United University usually vols voltage volts waves wire York York City
مقاطع مشهورة
الصفحة 246 - Washington, a department of education, for the purpose of collecting such statistics and facts as shall show the condition and progress of education in the several States and Territories, and of diffusing such information respecting the organization and management of schools and school systems, and methods of teaching, as shall aid the people of the United States in the establishment and maintenance of efficient school systems and otherwise promote the cause of education throughout the country.
الصفحة 65 - THE Members of the League recognize that the maintenance of peace requires the reduction of national armaments to the lowest point consistent with national safety and the enforcement by common action of international obligations. The Council, taking account of the geographical situation and circumstances of each State, shall formulate plans for such reduction for the consideration and action of the several Governments.
الصفحة 130 - They had for more than a century before been regarded as beings of an inferior order and altogether unfit to associate with the white race, either in social or political relations; and so far inferior that they had no rights which the white man was bound to respect; and that the Negro may justly and lawfully be reduced to slavery for his benefit.
الصفحة 216 - Let me be frank in saying that the United States seeks the kind of dollar which a generation hence will have the same purchasing and debt-paying power as the dollar value we hope to attain in the near future.
الصفحة 65 - The removal, so far as possible, of all economic barriers and the establishment of an equality of trade conditions among all the nations consenting to the peace and associating themselves for its maintenance.
الصفحة 19 - Any person subject to military law who deserts or attempts to desert the service of the United States shall, if the offense be committed in time of war, suffer death or such other punishment as a courtmartial may direct, and, if the offense be committed at any other time, any punishment, excepting death, that a courtmartial may direct.
الصفحة 266 - Newton's law of gravitation states that any two bodies attract each other with a force proportional to the product of their masses and inversely proportional to the square of the distance between them...
الصفحة 142 - They think it is an unhallowed thing to commit their lore to writing, though in the other public and private affairs of life they frequently make use of the Greek alphabet. . . . Beyond all things, they are desirous to inspire a belief that men's souls do not perish but transmigrate after death from one individual to another ; and they hold that people are thereby most strongly urged to bravery, as the fear of death is thus destroyed.
الصفحة 65 - In order to render possible the initiation of a general limitation of the armaments of all nations, Germany undertakes strictly to observe the military, naval and air clauses which follow.
الصفحة 116 - State against another growing out of individual wrongs or national obligations, as well as the guarantees for the execution of whatever award may be made, left to the decision of an impartial arbitral tribunal before which the litigant nations, weak and strong alike, may stand as equals in the eye of international law and mutual duty.