Journal, Volumen15Institution of Electrical Engineers., 1887 Vols. for 1970-79 include an annual special issue called IEE reviews. |
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Página 235
... poles of the electro- magnet D , which is magnetised periodically and regularly by currents from the battery B ... pole pieces of the electro - magnet M'1 , and thus it vibrates in a magnetic field . This magnet is excited by the battery ...
... poles of the electro- magnet D , which is magnetised periodically and regularly by currents from the battery B ... pole pieces of the electro - magnet M'1 , and thus it vibrates in a magnetic field . This magnet is excited by the battery ...
Página 252
... poles of a powerful electro - magnet , excited by a current of 38 ampères . The current passes through the strip of bismuth in the direction of its length , while two points in the other two sides of the strip are brought to the same ...
... poles of a powerful electro - magnet , excited by a current of 38 ampères . The current passes through the strip of bismuth in the direction of its length , while two points in the other two sides of the strip are brought to the same ...
Página 257
... pole - piece was 1 to 2 mm . In the first experiment one pole - piece only was used , and on closing the circuit the quartz plate took up the position shown in Fig . 2. On interrupting the circuit , the plate began to oscillate about ...
... pole - piece was 1 to 2 mm . In the first experiment one pole - piece only was used , and on closing the circuit the quartz plate took up the position shown in Fig . 2. On interrupting the circuit , the plate began to oscillate about ...
Página 258
... pole - pieces of the magnet were then used , and they were brought so close together that the quartz had just room to ... poles ; on reversing the current , the quartz took up a new position symmetrical with respect to the former one ...
... pole - pieces of the magnet were then used , and they were brought so close together that the quartz had just room to ... poles ; on reversing the current , the quartz took up a new position symmetrical with respect to the former one ...
Página 262
... pole of the voltameter nearest to A a wire leads to a galvanometer , the return wire from which comes also to the mercury cup A. When required , an electrometer can be connected to the points A and B. To determine the polarisation ...
... pole of the voltameter nearest to A a wire leads to a galvanometer , the return wire from which comes also to the mercury cup A. When required , an electrometer can be connected to the points A and B. To determine the polarisation ...
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amperes apparatus arc lamps armature arranged Bernstein cable cent circuit coils condenser conductor connected construction copper copper wire current-density cut-out Describes diameter difference of potential difficulty distance dynamo Dynamo-Electric Machines effect efficiency Electric Arc Electric Currents electric lighting electrical efficiency electro-magnet electro-motive force electrodes employed equal experiments extra-currents field magnets filament Franklin Institute galvanometer given glass glow lamps heat Improvements in Dynamo-Electric Improvements in Electric Improvements in Secondary incandescent lamps increase inductive capacity instrument insulation iron core iron wire lead length Lord Rayleigh magnetised maximum economy means metal method miles obtained ohms paper parallel plate platinum poles potential difference practical Preece produced Professor Hughes regulator Relates resistance Secondary Batteries segments self-induction series system solenoid solution switch T. A. EDISON telegraph telephone temperature trunk wire tube upper carbon rod V₁ variable period vibrations volts watts zinc