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 |
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Página 15
... volt . We will , for the present , rest satisfied with the simple statement that the volt is approximately equal to , although actually a fraction less than , the electro - motive force of a single Daniell cell . ( See Chapter III ...
... volt . We will , for the present , rest satisfied with the simple statement that the volt is approximately equal to , although actually a fraction less than , the electro - motive force of a single Daniell cell . ( See Chapter III ...
Página 25
... volt 2 ohms = 05 ampere . Similarly , by doubling the electro motive force we get , with unit resistance , 2 volts I ohm = 2 amperes . A little reflection will make evident the subsidiary law that CHAP . II . 25 Ohm's Law.
... volt 2 ohms = 05 ampere . Similarly , by doubling the electro motive force we get , with unit resistance , 2 volts I ohm = 2 amperes . A little reflection will make evident the subsidiary law that CHAP . II . 25 Ohm's Law.
Página 26
... volts , the resistance will be ΙΟ 2 = 5 ohms . Similarly , if a current of 5 amperes flows through a resistance of 10 ohms , the electro - motive force capable of maintaining this cur- rent will be 10 X 5 = 50 volts . When two or more ...
... volts , the resistance will be ΙΟ 2 = 5 ohms . Similarly , if a current of 5 amperes flows through a resistance of 10 ohms , the electro - motive force capable of maintaining this cur- rent will be 10 X 5 = 50 volts . When two or more ...
Página 28
... volts , and that its internal resistance is negligibly low ; with one wire of 100 ohms joined on we get-- 100 volts = I ampere . 100 ohms With two such wires we get- 100 = = 2 amperes . 50 100 volts 100 2 ohms This current divides ...
... volts , and that its internal resistance is negligibly low ; with one wire of 100 ohms joined on we get-- 100 volts = I ampere . 100 ohms With two such wires we get- 100 = = 2 amperes . 50 100 volts 100 2 ohms This current divides ...
Página 29
... volts 100 100 ΙΟ = - ΙΟ ohms 10 amperes . Whence one ampere will still go through each wire , so that the strength of the current increases in precisely the same proportion as the number of wires . If , however , the internal resistance ...
... volts 100 100 ΙΟ = - ΙΟ ohms 10 amperes . Whence one ampere will still go through each wire , so that the strength of the current increases in precisely the same proportion as the number of wires . If , however , the internal resistance ...
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.