Elements of Electrical EngineeringMacmillan, 1924 - 335 strani |
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abvolts alloys alternating current alternating-current aluminum ammeter ampere-hours amperes armature atomic B&SG brushes cable capacitance carbon cell centimeter charge chemical circular mils coefficient coil Compute condenser conductivity conductor constant copper wire coulombs cycle density determined diameter dielectric direct current direct-current discharge drop dynamo effect elec electric circuit electric conductors electrodes electrolyte electromagnetic electromotive force electrostatic energy equal equation frequency furnace galvanometer gausses grams heat incandescent lamp inch increases induced emf instruments insulation resistance ions iron joules known light lines of force load Look for accounts machine magnetic circuit magnetic field magnetic flux material measuring mechanical metal meter methods multiple ohms operation path permanent magnet permeability plates pole potential pounds proportional pull reactance resistor rheostat secondary shunt solution square steel storage battery strength supply telegraph telephone temperature terminals three-phase transformers unit voltage voltmeter volts watts winding zero zinc
Priljubljeni odlomki
Stran 126 - At a temperature of 20° C. the "constant mass" temperature coefficient of resistance of standard annealed copper, measured between two potential points rigidly fixed...
Stran 28 - Lenz, in 1834, summed up the matter by saying that in all cases of electromagnetic induction the induced currents have such a direction that their reaction tends to stop the motion which produces them.
Stran 192 - The amount nf an ion liberated at an electrode in a given time is proportional to the strength of the current.
Stran 61 - As resistance is directly proportional to the length, and inversely proportional to the area of the cross-section, the required resistance is R = 18.7 X ||||-X |= 10.5 ohms (approx.) Ans.
Stran 184 - Electro-negative. Oxygen Sulphur Selenium Nitrogen Fluorine Chlorine Bromine Iodine Phosphorus Arsenic Chromium Vanadium Molybdenum Tungsten Boron Carbon Antimony Tellurium Tantalum Titanium Silicon Hydrogen Gold Osmium...
Stran 56 - These are 47rtti in number, and are in this case straight lines radiating equally in all directions from the pole. Describe a sphere about the pole, and project the circuit on its surface...
Stran 316 - On the Heat evolved by Metallic Conductors of Electricity, and in the cells of a battery during Electrolysis.
Stran 160 - The specific heat of a substance is the number of calories required to raise one gram of the substance one degree Centigrade.
Stran 58 - First, the direct effect of the increased strength of field in which the diaphragm moves is to increase proportionally the strength of the induced current, since it increases correspondingly the rate of change in the number of lines of force enclosed by the coil of the instrument; second, an approach...
Stran 107 - It states in the shorthand of physics that the energy contained in any particle of matter is equal to the mass of that body (in grams) multiplied by the square of the velocity of light (in centimeters per second). This extraordinary relationship becomes more vivid when its terms are translated into concrete values...