Electric Lighting: A Practical Exposition of the Art, for the Use of Engineers, Students and Others Interested in the Installation Or Operation of Electrical Plants, Том 1D. Van Nostrand Company, 1906 |
З цієї книги
Результати 1-5 із 100
Сторінка 5
... latter being used more for street lighting and other rougher uses , where fine points of advantage are not of so much consequence . The only disadvantages of the electric light to offset the numerous and important advantages stated ...
... latter being used more for street lighting and other rougher uses , where fine points of advantage are not of so much consequence . The only disadvantages of the electric light to offset the numerous and important advantages stated ...
Сторінка 8
... latter part of the seventeenth and early in the eighteenth century numerous experiments were made with dis- charges in air or rarefied gas . The record of these may be found in a book entitled Physico- Mechanical Experiments on Various ...
... latter part of the seventeenth and early in the eighteenth century numerous experiments were made with dis- charges in air or rarefied gas . The record of these may be found in a book entitled Physico- Mechanical Experiments on Various ...
Сторінка 20
... latter may be easily omitted . Approximate values for mental calculations are given in many instances , the error being usually less than one per cent . MEASURES OF LENGTH . APPROX . VALUE . ACTUAL LOGARITHM . NUMBER . Millimeters in ...
... latter may be easily omitted . Approximate values for mental calculations are given in many instances , the error being usually less than one per cent . MEASURES OF LENGTH . APPROX . VALUE . ACTUAL LOGARITHM . NUMBER . Millimeters in ...
Сторінка 21
... depend- ing upon the specific heat of water and the force of gravity . * Everett's C. G. S. System of Units , 1891 Edit . , pp . 99-101 . Accepting the latter value , we have the following relations GENERAL UNITS AND MEASURES . 176 21.
... depend- ing upon the specific heat of water and the force of gravity . * Everett's C. G. S. System of Units , 1891 Edit . , pp . 99-101 . Accepting the latter value , we have the following relations GENERAL UNITS AND MEASURES . 176 21.
Сторінка 22
... latter value , we have the following relations : 780 ft . - lbs . per lb. - deg . F. 428 kgm . - meters per kg . - deg . C. 4.2 Joules ( Watt - seconds ) per grm . - deg . C. 1404 ft . - lbs . per lb. - deg . C. 4.2 × 107 ergs per grm ...
... latter value , we have the following relations : 780 ft . - lbs . per lb. - deg . F. 428 kgm . - meters per kg . - deg . C. 4.2 Joules ( Watt - seconds ) per grm . - deg . C. 1404 ft . - lbs . per lb. - deg . C. 4.2 × 107 ergs per grm ...
Інші видання - Показати все
Electric Lighting: A Practical Exposition of the Art, for the Use of ..., Том 2 Francis Bacon Crocker Попередній перегляд недоступний - 2016 |
Загальні терміни та фрази
alternating current amount ampere-hours ampere-turns amperes apparatus arc lamps armature core arrangement belt boiler booster brushes carbon cause cell cent centimeters centrifugal force charge circuit cloth coal coils commutator condensation conductors connected consists construction copper cut-off cylinder diameter direct direct current direct-current discharge dynamo effect efficiency Elec electric lighting electric-lighting electrolyte employed fact feet field-magnet flux density fly-wheel force fuel gas-engine governor heat hence incandescent lamps inch inductors insulation iron latter lines load machine machinery magnetic magnetic circuit mechanical mercurous sulphate motors multipolar obtained operated ordinary pipe piston plant plates pole-pieces poles practically pressure produced pulley represented in Fig resistance revolutions per minute ring shaft short-circuited shown in Fig shunt speed square steam steam-engine storage battery stroke sulphate supply surface switch temperature tion tubes turbine usually valve voltage voltmeter volts water-tube boilers weight wheel winding wire zinc sulphate
Популярні уривки
Сторінка 22 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" 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 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
Сторінка 483 - Illustrated. 8vo, cloth. $2.00. Elements of Electric Lighting, including Electric Generation, Measurement, Storage, and Distribution. Tenth Edition, fully revised and new matter added. Illustrated. 8vo, cloth. $1.50. Power Transmitted by Electricity and Applied by the Electric Motor, including Electric Railway Construction.
Сторінка 23 - ... 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...
Сторінка 483 - ABBOTT, AV The Electrical Transmission of Energy. A Manual for the Design of Electrical Circuits.