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. |
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Сторінка 15
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... 30 volts is maintained in a circuit and a current of 191 amperes is the ... law OHM'S LAW . 15.
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... 30 volts is maintained in a circuit and a current of 191 amperes is the ... law OHM'S LAW . 15.
Сторінка 18
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... Rule 6 , viz .: The electromotive force varies directly with the ... 30 ohms resistance . The difference of potential of the 100 ohm coil is ...
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... Rule 6 , viz .: The electromotive force varies directly with the ... 30 ohms resistance . The difference of potential of the 100 ohm coil is ...
Сторінка 22
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... Rule 10. In shunt circuits , the resistance of the com- bined ... 30 + 100 mhos 1880 + 1880 + 1000 = 1800 mhos . The reciprocal of conductance ...
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... Rule 10. In shunt circuits , the resistance of the com- bined ... 30 + 100 mhos 1880 + 1880 + 1000 = 1800 mhos . The reciprocal of conductance ...
Сторінка 23
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... rule obtained . 14.9 X 19 = 14.9+ 19 Rule 12. When all the parallel ... 30 volts safely without burning out or heating injuriously . A 110 volt ...
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules ... rule obtained . 14.9 X 19 = 14.9+ 19 Rule 12. When all the parallel ... 30 volts safely without burning out or heating injuriously . A 110 volt ...
Сторінка 24
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules, All of the Simplest Forms ... Law , Rule 3 ) , is found by dividing the E. M. F. by the resistance - 30 ÷ 3 10 ohms . By Rule 5 the resistance of ...
A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules, All of the Simplest Forms ... Law , Rule 3 ) , is found by dividing the E. M. F. by the resistance - 30 ÷ 3 10 ohms . By Rule 5 the resistance of ...
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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
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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.