Electrical Engineering for Electric Light Artisans and Students: (embracing Those Branches Prescribed in the Syllabus Issued by the City and Guilds Technical Institute)Longmans, Green, 1895 - 753 páginas |
Dentro del libro
Resultados 1-5 de 94
Página 4
... direction in this path indicates the direction in which the force is transmitted ; and , thirdly , their density , or the number occupying a given space , measures the strength or magnitude 4 CHAP . I. Electrical Engineering.
... direction in this path indicates the direction in which the force is transmitted ; and , thirdly , their density , or the number occupying a given space , measures the strength or magnitude 4 CHAP . I. Electrical Engineering.
Página 5
... direction , and density , we can predict the result which should follow in any given electrical field . For the action is always as if the lines of force endeavour to coincide in direction , and then to shorten themselves , the ...
... direction , and density , we can predict the result which should follow in any given electrical field . For the action is always as if the lines of force endeavour to coincide in direction , and then to shorten themselves , the ...
Página 8
... direction either to or from London , so that , were they really to complete their path through the earth , somet would be going in one direction and the remainder in the oppo- site direction through the earth connection . It will ...
... direction either to or from London , so that , were they really to complete their path through the earth , somet would be going in one direction and the remainder in the oppo- site direction through the earth connection . It will ...
Página 84
... direction , as shown by the arrow - heads in fig . 34 , the wires are attracted one to the other . On the other hand , if the currents travel in opposite directions , as in fig . 35 , repulsion ensues . A FIG . 35 . B C D The force of ...
... direction , as shown by the arrow - heads in fig . 34 , the wires are attracted one to the other . On the other hand , if the currents travel in opposite directions , as in fig . 35 , repulsion ensues . A FIG . 35 . B C D The force of ...
Página 85
... direction in which the force acts . If we thread a wire through a piece of cardboard , send a strong current through the wire , and then sprinkle iron filings on the cardboard , they will arrange themselves in concentric circles round ...
... direction in which the force acts . If we thread a wire through a piece of cardboard , send a strong current through the wire , and then sprinkle iron filings on the cardboard , they will arrange themselves in concentric circles round ...
Otras ediciones - Ver todas
Electrical Engineering for Electric Light Artisans and Students: (Embracing ... Sir William Slingo,Arthur Brooker Sin vista previa disponible - 2015 |
Electrical Engineering for Electric Light Artisans and Students: (Embracing ... William Slingo,Arthur Brooker Sin vista previa disponible - 2015 |
Términos y frases comunes
acid alternating current ammeter amount ampere-hours amperes apparatus arc lamp armature core battery brass brushes candle candle-power carbon cell commutator conductor connected considerable convolutions copper Crown 8vo current flowing current strength curve Daniell cell deflection developed diameter direct current direction dynamo eddy currents effect electrical electro-magnet electro-motive force employed equal external circuit external resistance field field-magnet coils filament fixed galvanometer heat illustrated in fig inch increase instrument insulated lamp length light lines of force machine magnetic magnetising maximum measured mercury metal motor needle negative number of lines obtained ohms pair parallel piece placed plates pole pole-pieces portion position potential difference practice pressure proportional reduced result revolutions per minute ring rotation round screw secondary self-induction shaft shown in fig shunt soft iron solenoid speed steel strip sulphate surface switch temperature terminals tion tube varies voltmeter volts watts wire wound zinc
Pasajes populares
Página 635 - To explain the construction of the common barometer, and to shew that the mercury is sustained in it by the pressure of the air on the surface of the mercury in the basin.
Página 582 - ... a few words on the subject may not be out of place.