Arithmetic of Electricity: A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules, All of the Simplest Forms, and Involving Only Ordinary Arithmetic ...N.W. Henley Publishing Company, 1909 - 162 стор. |
З цієї книги
Результати 1-5 із 30
Сторінка 15
... 50 × .035 : volts . = 1.75 A maximum difference of potential E. M. F. of 30 volts is maintained in a circuit and a current of 191 amperes is the result ; what is the resistance of the circuit ? Solution : By Rule 3 the resistance is ...
... 50 × .035 : volts . = 1.75 A maximum difference of potential E. M. F. of 30 volts is maintained in a circuit and a current of 191 amperes is the result ; what is the resistance of the circuit ? Solution : By Rule 3 the resistance is ...
Сторінка 17
... volts between its terminals connected as described . The terminals are connected to and the circuit is closed through a series of three coils , one of 100 ohms , one of 50 ohms , and one of 25 ohms resistance . The connec- tions between ...
... volts between its terminals connected as described . The terminals are connected to and the circuit is closed through a series of three coils , one of 100 ohms , one of 50 ohms , and one of 25 ohms resistance . The connec- tions between ...
Сторінка 18
... 50 : 25 : 10 volts : E1 : E2 : E3 . because by the conditions of the problem the total E. M. F. 10. Solving the proportion by the regu- lar rule , we find that E ' 5.7 , E- 2.8 and E'- 1.4 volts . = = = The same external circuit is ...
... 50 : 25 : 10 volts : E1 : E2 : E3 . because by the conditions of the problem the total E. M. F. 10. Solving the proportion by the regu- lar rule , we find that E ' 5.7 , E- 2.8 and E'- 1.4 volts . = = = The same external circuit is ...
Сторінка 19
... 50 % amperes through 205 ohms ( Rule 2 ) , an E. M. F. is required equal to X 205 volts or 612 volts . DIVIDED , BRANCHED OR SHUNT CIRCUITS . A single conductor , from one terminal of a gener- ator may be divided into one or more ...
... 50 % amperes through 205 ohms ( Rule 2 ) , an E. M. F. is required equal to X 205 volts or 612 volts . DIVIDED , BRANCHED OR SHUNT CIRCUITS . A single conductor , from one terminal of a gener- ator may be divided into one or more ...
Сторінка 22
... 50 volt circuit ( leads differing in potential by 50 volts ) , are connected by a 20 ohm motor . A 50 ohm lamp and 1000 ohm resistance coil are connected in parallel or shunt circuit there- with , what is the combined resistance ? and ...
... 50 volt circuit ( leads differing in potential by 50 volts ) , are connected by a 20 ohm motor . A 50 ohm lamp and 1000 ohm resistance coil are connected in parallel or shunt circuit there- with , what is the combined resistance ? and ...
Інші видання - Показати все
Загальні терміни та фрази
50 cents 50 ohms 50 volts air gaps alternating current ampere turns ance appliances armature core battery C. G. S. units calculated calories capacity cells in parallel cells in series circular mils coefficient of leakage coil conductance conductor copper coulombs cross-sectional area cycles per second difference of potential distance divided drop dynamo efficiency electromotive force energy engines EXAMPLE expressed external circuit factors farad field resistance fractions given gives gram heat developed horse power horse-power inductance internal resistance joules kilogram-meter lamps in parallel leads length lines of force lines per square magnet core magnetic circuit meter microfarad microhms mils in diameter motor multiplied number of cells number of turns Ohm's law ohms resistance permeability permeance proportion ratio of conversion reciprocal reduced reluctance Rule 55 Rules 30 sectional area shunt Solution specific resistance square centimeter square inch tion turns of wire voltage weight wrought iron
Популярні уривки
Сторінка 50 - This loss as previously explained, is equal to the square of the current multiplied by the resistance. The...
Сторінка 13 - The strength of the current is equal to the electro-motive force divided by the resistance...
Сторінка 57 - Specific Heat. The specific heat of a substance is the ratio of the heat required to raise the temperature of unit weight of the substance 1 deg.