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 77
Página 12
... electric flow ensues , in just the same way that we could force the bottom out of a tank of water and empty it by sufficiently increasing the pressure . A similar result can be achieved 12 CHAP . I. Electrical Engineering.
... electric flow ensues , in just the same way that we could force the bottom out of a tank of water and empty it by sufficiently increasing the pressure . A similar result can be achieved 12 CHAP . I. Electrical Engineering.
Página 14
... sufficient . It is , however , now essential that more precision in comparing or measuring forces and their properties and effects should be obtained . Measurement is , in fact , the most important branch of electrical science , as ...
... sufficient . It is , however , now essential that more precision in comparing or measuring forces and their properties and effects should be obtained . Measurement is , in fact , the most important branch of electrical science , as ...
Página 35
... sufficiently strong to impart motion to the needle . If the instru- ment is being employed to measure either the current passing through the resistance , or any effect of that current , serious errors may therefore be introduced by the ...
... sufficiently strong to impart motion to the needle . If the instru- ment is being employed to measure either the current passing through the resistance , or any effect of that current , serious errors may therefore be introduced by the ...
Página 57
... sufficient to form or maintain the negative element or ' plate , ' so that a layer of mercury is not really necessary . Fig . 20 shows the method employed for casing in . A cylin- drical brass case with an ebonite cover is used , and ...
... sufficient to form or maintain the negative element or ' plate , ' so that a layer of mercury is not really necessary . Fig . 20 shows the method employed for casing in . A cylin- drical brass case with an ebonite cover is used , and ...
Página 63
... sufficient to neutralise the acid ) , the copper will be readily retained in the solution , but with the change of colour mentioned above . Iron , however , while it is soluble in acid , is precipitated by ammonia— that is to say , the ...
... sufficient to neutralise the acid ) , the copper will be readily retained in the solution , but with the change of colour mentioned above . Iron , however , while it is soluble in acid , is precipitated by ammonia— that is to say , the ...
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.