The power that causes the current is called the electromotive force, and the value of the electromotive force, generally written E.M.F., of. From Wordnik.com. [General Science] Reference
The electric potential is therefore also termed the electromotive force (the force tending to "move the electric charge"), which is usually abbreviated EMF. From Wordnik.com. [The Human Brain]
Let electromotive force of generator be E; of motor F. From Wordnik.com. [Scientific American Supplement, No. 288, July 9, 1881] Reference
Cent. an electromotive force of 0.7729 volts, or with 130 deg. From Wordnik.com. [Scientific American Supplement, No. 441, June 14, 1884.] Reference
The electromotive power of this element may be as high as 1.8 D. From Wordnik.com. [Scientific American Supplement, No. 392, July 7, 1883] Reference
Each combination of material has its own specific electromotive force. From Wordnik.com. [General Science] Reference
An ampere is an electromotive force of one volt through a resistance of one ohm. From Wordnik.com. [Electricity for Boys] Reference
Volta came to regard the metallic contact as the cause of the electromotive force. From Wordnik.com. [Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86] Reference
The difference of potential between any two points is called an electromotive force. From Wordnik.com. [Scientific American Supplement, No. 288, July 9, 1881] Reference
Rusty lead, so to speak, so connected with bright lead, has a high electromotive force. From Wordnik.com. [Steam, Steel and Electricity] Reference
The electromotive force of this secondary current is somewhat higher than is necessary. From Wordnik.com. [Scientific American Supplement, No. 623, December 10, 1887] Reference
The electromotive force obtained varies with the temperature; a pile of 295 pairs having. From Wordnik.com. [Scientific American Supplement, No. 441, June 14, 1884.] Reference
Its electromotive force is determined by the distance in the series between the metals used. From Wordnik.com. [Man or Matter] Reference
Dr.G. G.re, F.R.S., has invented an improved thermopile for measuring small electromotive forces. From Wordnik.com. [Scientific American Supplement, No. 441, June 14, 1884.] Reference
There is a limit of electromotive force below which the indicator fails to give reliable readings. From Wordnik.com. [Scientific American Supplement, No. 433, April 19, 1884] Reference
For higher electromotive forces than a volt, several of these piles would have to be connected in series. From Wordnik.com. [Scientific American Supplement, No. 441, June 14, 1884.] Reference
These are deposited in succession, and are sharply separated if the electromotive power is not too great. From Wordnik.com. [Scientific American Supplement, No. 433, April 19, 1884] Reference
Hence the distances separating the equipotential surfaces are a measure of the electromotive force present. From Wordnik.com. [Scientific American Supplement, No. 288, July 9, 1881] Reference
This resistance is thrown in or out by means of a motor device actuated by an electromotive force indicator. From Wordnik.com. [Scientific American Supplement, No. 623, December 10, 1887] Reference
The current required to run a street car is about thirty amperes, and an electromotive force of about 180 volts. From Wordnik.com. [Scientific American Supplement, No. 620, November 19,1887] Reference
Accordingly, within certain limits, the electromotive force of the dynamo is independent of the speed of rotation. From Wordnik.com. [Scientific American Supplement, No. 623, December 10, 1887] Reference
Mr. Kapp's experiment was not conclusive, for the length of spark is not an accurate measure of electromotive force. From Wordnik.com. [Scientific American Supplement, No. 795, March 28, 1891] Reference
The electromotive force of one cell may not give a current strong enough to ring a door bell or to operate a telephone. From Wordnik.com. [General Science] Reference
The fractional electromotive force is obtained by means of a sliding contact which cuts out so many pairs as is required. From Wordnik.com. [Scientific American Supplement, No. 441, June 14, 1884.] Reference
Whether a metal increased or decreased in thermo-electromotive force by being heated, it increased in rapidity of corrosion. From Wordnik.com. [Scientific American Supplement, No. 443, June 28, 1884] Reference
In practice the word "current" is used to designate ampere flow; and electromotive force, or E.M. F., is used instead of voltage. From Wordnik.com. [Electricity for Boys] Reference
We must not forget that even insulators, as well as conductors, cutting lines of force, have the electromotive force developed in them. From Wordnik.com. [Scientific American Supplement, No. 711, August 17, 1889] Reference
An Electrical Governor -- A new apparatus for preserving a constant electromotive force with varying dynamo speed -- 1 illustration. From Wordnik.com. [Scientific American Supplement, No. 623, December 10, 1887] Reference
On having been verified with a standard voltaic cell the apparatus becomes itself a standard, especially for small electromotive forces. From Wordnik.com. [Scientific American Supplement, No. 441, June 14, 1884.] Reference
Magnesium in particular, also zinc and cadmium, were greatly depressed in electromotive force in electrolytes by elevation of temperature. From Wordnik.com. [Scientific American Supplement, No. 443, June 28, 1884] Reference
It has been found that two cells having an electromotive force of about two volts each will in this process suffice; if preferred, however. From Wordnik.com. [Scientific American Supplement, No. 433, April 19, 1884] Reference
THE HANDY CURRENT-DETECTOR is used as a current-detector and as a device for studying the counter-electromotive force of motor while running. From Wordnik.com. [How Two Boys Made Their Own Electrical Apparatus Containing Complete Directions for Making All Kinds of Simple Apparatus for the Study of Elementary Electricity] Reference
According to Ohm's law, the strength of current is proportional to the electromotive force divided by the total resistance, external and internal. From Wordnik.com. [Scientific American Supplement, No. 481, March 21, 1885] Reference
But when you come to run twenty or thirty or fifty cars on one line, you will require very large conductors or dangerously high electromotive force. From Wordnik.com. [Scientific American Supplement, No. 620, November 19,1887] Reference
It appears from the experiments of Drs. Warren De La Rue and Hugo Muller that the electromotive force determining disruptive discharge in air is about. From Wordnik.com. [Scientific American Supplement, No. 288, July 9, 1881] Reference
The strength of a steady current depends upon these two factors only, the electromotive force which causes it and the resistance which it has to overcome. From Wordnik.com. [General Science] Reference
The electromotive force of each thermo-electric element did not exceed 0.036 of a volt, and 1,800 elements were therefore necessary to work an incandescence lamp. From Wordnik.com. [Scientific American Supplement, No. 384, May 12, 1883] Reference
We learned in Section 287 that the strength of a current increases when the electromotive force increases, and diminishes when the electromotive force diminishes. From Wordnik.com. [General Science] Reference
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