The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Americana corporation, 1931 |
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Zadetki 1–3 od 83
Stran 67
... Direct Primary ) ( New York 1926 ) ; Commonwealth Club of California , Transactions , ' The Direct Primary Success or Failure ' ( San Francisco 1924 ) ; Evans , E. C. , A History of the Austra- lian Ballot System in the United States ...
... Direct Primary ) ( New York 1926 ) ; Commonwealth Club of California , Transactions , ' The Direct Primary Success or Failure ' ( San Francisco 1924 ) ; Evans , E. C. , A History of the Austra- lian Ballot System in the United States ...
Stran 93
... direct - current generator provided , at proper points in the winding , with taps to collector rings , from which , if the machine is run as a motor from the direct - current side , an alternating current may be taken . Usually the ...
... direct - current generator provided , at proper points in the winding , with taps to collector rings , from which , if the machine is run as a motor from the direct - current side , an alternating current may be taken . Usually the ...
Stran 102
... direct current motor it is neces- sary to introduce an external resistance into the armature circuit to hold back the current which would flow , until the machine approaches full speed . The resistance is then gradually re- duced until ...
... direct current motor it is neces- sary to introduce an external resistance into the armature circuit to hold back the current which would flow , until the machine approaches full speed . The resistance is then gradually re- duced until ...
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18th century acid alternating current American ampere hours amperes ancient anode armature battery became body book of Enoch cable called carbon cathode cell cent century charge chemical Church circuit coil conductors connected consists constitution Consult copper corpuscle cylinder direct direct current discharge effect Egypt Egyptian elec electric current electric energy electrode electrolyte electromotive force employed engine England English faradic feet France French furnace German Greek heat horse power inches industry insulated iron king known lamp later Leyden jar light lines literature London machine magnetic manufacture mass material mechanical ment metal miles motor nature negative operation oxide Paris period persons plants plate pole positive pounds pressure produced Prussia resistance Saint speed steam temperature term theory tion tricity tube United usually voltage volts vote wattmeter welding wire writing York