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A Guide to Electric Lighting: For the Use of Householders and Amateurs ...
Selimo Romeo Bottone
No preview available - 2017
A Guide to Electric Lighting for the Use of Householders and Amateurs
Selimo Romeo Bottone
No preview available - 2016
50 volts accumulator alternating currents ammeter amount of current ampere-hours arc lamps armature bichromate binding-screw bobbin brass brushes candle carbon rod carry the current cent charging chloride chromic chromic-acid cell commutator conductor connected consists copper wire cost current of electricity current passes dynamo electric lighting electric motor electro-magnet electro-motive force energy field-magnets filament give given graphite Grove cell heated holder horse-power hydrogen illustrated incandescence lamps inch increase installation insulated internal resistance iron core large current Leclanche cells lower carbon machine magnetised means metal motion nected nitric acid number of amperes number of cells Ohm's law ohms outer circuit Pacinotti placed plates platinum pole-pieces poles porous cell positive pressure produce render resistance in circuit rotate round shown in Fig shunt soft iron solenoid solution sufficient sulphate sulphuric acid supplied switch terminal thirty lamps tion tricity upper carbon voltage voltmeter watts wire coils wound zinc
Page 127 - Every switch or commutator should be of such construction as to comply with the following condition, namely — That, when the handle is moved or turned to and from the positions of "on " and " off," it is impossible for it to remain in any intermediate position, or to permit of a permanent arc, or heating. 19. The handles of every switch must be completely insulated from the circuit. 20. The main switches of a building should be placed as near as possible to the point of entrance of the conductors...
Page 27 - If any straight conductor ab, the direction of whose length is at right angles to the lines of force, is moved in a uniform magnetic field in a direction at right angles to the lines of force of the field and to its own length, and at such a uniform velocity that at the end of unit time (1 second) it reaches the position a
Page 18 - The strength of the current is equal to the electro-motive force divided by the resistance ; this is known as Ohm's law...
Page 13 - ... collected in inverted glass bottles, filled with warm water. In order to comprehend the theory of this process, it must be premised that muriatic acid consists of chlorine and hydrogen. The peroxide of manganese is composed of manganese and oxygen. When these compounds react on one another, the peroxide of manganese gives up a portion of its oxygen to the hydrogen of the muriatic acid, in consequence of which water is generated, and chlorine (the other ingredient in muriatic acid) is liberated....