The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Americana corporation, 1931 |
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Zadetki 1–3 od 83
Stran 92
... effect . The current is thrown into such a phase that it produces lines of force directly opposed to the field and thus lowers the voltage by reducing the total flux . The effect of armature reaction depends upon whether the current is ...
... effect . The current is thrown into such a phase that it produces lines of force directly opposed to the field and thus lowers the voltage by reducing the total flux . The effect of armature reaction depends upon whether the current is ...
Stran 160
... effect , ( 2 ) the magnetic effect , and ( 3 ) the heating effect . Instruments which are used for measuring currents by taking advan- tage of the first of these phenomena are called voltameters . When an electric current is passed ...
... effect , ( 2 ) the magnetic effect , and ( 3 ) the heating effect . Instruments which are used for measuring currents by taking advan- tage of the first of these phenomena are called voltameters . When an electric current is passed ...
Stran 218
... effect produced upon the tissues . B TO PATIENT FIG . 5. - High frequency Resonator . DA High frequency currents have little or no tendency to produce muscular contraction and are not used for electrodiagnosis . The spark effect is ...
... effect produced upon the tissues . B TO PATIENT FIG . 5. - High frequency Resonator . DA High frequency currents have little or no tendency to produce muscular contraction and are not used for electrodiagnosis . The spark effect is ...
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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