Proceedings of the International Electrical Congress Held in the City of Chicago, August 21st to 25th, 1893 |
Contents
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Common terms and phrases
algebra alloys alternating current amperes apparatus arc lamp armature Ayrton C₁ C₂ cable capacity carbon cent Chairman circuit coefficient coils committee complex quantities condenser conductor Congress connected constant continuous current curves diagrams dielectric difference direct current discussion disk distance dynamo E₁ effect electrical engineering electricians electro-magnetic electromotive force energy equations experiments galvanometer german-silver give harmonic hence hysteresis I₁ impedance impressed electromotive force incandescent increase insulation iron L₁ L₂ lamp length light machine magnetic leakage maximum means measurements mercury method motor mutual induction non-inductive obtained ohms paper phase photometer polyphase system position potential practical Preece primary current Prof R₁ R₂ ratio represented resistance secondary current self-induction shunts Siemens sine-wave standard telephone temperature terminals Thompson tion transformer transmission tube variation voltage volts wattmeter watts wave wick zero
Popular passages
Page 20 - As a Unit of Resistance, the International Ohm, which is based upon the ohm equal to io9 units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grammes in mass of a constant cross-sectional area, and of the length of 106.3 centimetres.
Page 17 - As a unit of current, the international ampere, which is one-tenth of the unit of current of the CGS system of electro-magnetic units, and which is represented sufficiently well for practical use by the unvarying current, which, when passed through a solution of nitrate of silver in water in accordance with accompanying specifications,1 deposits silver at the rate of o.oo1 1 1 8 of a gramme per second.
Page 17 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 109 units of resistance of the CGS system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14-4521 grammes in mass, of a constant cross-sectional area and of the length of 106-3 cm.
Page 19 - Henry, which is the induction in a circuit when the electro-motive force induced in this circuit is one international volt while the inducing current varies at the rate of one Ampere per second.
Page 20 - Resolved, That the several governments represented by the delegates of this International Congress of Electricians be, and they are hereby, recommended to formally adopt as legal units of electrical measure the following : As a unit of resistance, the international ohm, which is based upon the ohm equal to 10°...
Page 17 - As a unit of electromotive force, the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of one international ampere...
Page 21 - IOT units of work in the cgs system, and which is represented sufficiently well for practical use by the energy expended in one second by an international ampere in an international ohm. " As a unit of power, the watt, which is equal to 10...
Page 20 - The liquid should consist of a neutral solution of pure silver nitrate, containing about 15 parts by weight of the nitrate to 85 parts of water. "The resistance of the voltameter changes...
Page 20 - In the following specification the term ' silver voltameter ' means the arrangement of apparatus by means of which an electric current is passed through a solution of nitrate of silver in water. The silver voltameter measures the total electrical quantity which has passed during the time of the experiment, and...
Page 20 - The unit of electromotive force shall be what is known as the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of...