Приклади вживання Electromotive force Англійська мовою та їх переклад на Українською
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Electromotive force= Current× Resistance[72].
The direction of the electromotive force is given by Lenz's law.
The current source is characterized by an electromotive force- EMF.
The electromotive force of the sources of electrical energy arises under the influence of the causes specific to each of them.
Occurrence of the induced current means that the circuit operates electromotive force Ei- induced emf.
At the same time, the electromotive force(EMF) does not depend on the size of the cell, but decreases with the temperature increase of the element.
They create a magnetic field induces in the tissues of the body electromotive force and the eddy currents.
It has a maximum thermal electromotive force in an alloy with copper, iron, chromel, while when the temperature coefficient is very low, virtually zero.
The thing is thelack of a magnetic field capable of creating an electromotive force in the windings of its stator.
So before people understoodthat voltage was just a potential difference,theywould actually call this desire of the electrons toget from here to here the electromotive force.
A voltage may represent either a source of energy(electromotive force) or lost, used, or stored energy(potential drop).
In 1888- 89 he established the relation between the mobility of ions and the diffusion coefficient of electrolytes;this relation became the basis of his theory of electromotive forces in galvanic cells.
To control using the induction method,seekers are used in which an electromotive force is created under the influence of a scattering magnetic flux.
Volta communicated a description of his pile to the Royal Society of London and shortly thereafter Nicholson and Cavendish(1780) produced the decomposition of water by means of the electric current,using Volta's pile as the source of electromotive force.[2].
It is located around the movable rotor, which, in turn, rotates under the action of the electromotive force coming from the stator connected to the network.
Ohm brought into order a host of puzzling facts connecting electromotive force and electric current in conductors, which all previous electricians had only succeeded in loosely binding together qualitatively under some rather vague statements.
Batteries of the Daniell or"gravity" type were employed almost generally in the United States andCanada as the source of electromotive force in telegraphy before the dynamo machine became available.[1].
One group agreed withVolta that the electric current was the result of an electromotive force of contact at the two metals; the other adopted a modification of Galvani's view and asserted that the current was the result of a chemical affinity between the metals and the acids in the pile.
Ingenhousz, during 1746, invented electric machines made of plate glass.[35] Experiments with the electric machine were largely aided by the discovery that a glass plate, coated on both sides with tinfoil,would accumulate electric charge when connected with a source of electromotive force.
Ohm's Law is anempirical physical law that determines the relationship of the electromotive force of a source(or electrical voltage) with the strength of the current flowing in a conductor and the resistance of the conductor.
This further increases the magnetic lines of force in which the armature rotates, which still further increases the current in the electromagnet, thereby producing a corresponding increase in the field magnetism, and so on,until the maximum electromotive force which the machine is capable of developing is reached.
When getting into the negativeradiation zone a powerful induced counter electromotive force appears in the device aimed at damping«unfavorable» radiation in the most dangerous for the human frequency range(40-70 GHz).
He also independently discovered Joule's law in 1842; to honor his efforts, Russian physicists refer to it as the"Joule-Lenz law." 1833- Michael Faraday announces his law of electrochemical equivalents 1834-Heinrich Lenz determines the direction of the induced electromotive force(emf) and current resulting from electromagnetic induction.
Cables with metal elements can be exposed to dangerous lightning influence andguidance of electromotive force(EMF) in metal cable elements under the imact of external electromagnetic influences of high voltage power lines, electrified railways, etc.
For convenience and to account for induced electricity it was then assumed that when these lines of force are"cut" by a wire in passing across them or when the lines of force in rising and falling cut the wire, a current of electricity is developed,or to be more exact, an electromotive force is developed in the wire that sets up a current in a closed circuit.
In the conductor, however, we find an electromotive force, to which in itself there is no corresponding energy, but which gives rise--assuming equality of relative motion in the two cases discussed--to electric currents of the same path and intensity as those produced by the electric forces in the former case.
As another writer has said, with the coming of Jenkin's and Maxwell's books all impediments in the way of electrical students were removed,"the fullmeaning of Ohm's law becomes clear; electromotive force, difference of potential, resistance, current, capacity, lines of force, magnetization and chemical affinity were measurable, and could be reasoned about, and calculations could be made about them with as much certainty as calculations in dynamics".[1][101].