adjective
definition
Of, relating to, or produced by electrostatics or static electricity
Examples of electrostatic in a Sentence
In the Nalder ohmmeter the electrostatic principle is employed.
Voltmeters may be divided into two classes, (a) electrostatic, (b) electrokinetic.
This gives a convection current of 2.7 X108 electrostatic units, or about 1/27 of the conduction current.
Up to 1895 or 1896 the suggestions for wireless telegraphy which had been publicly announced or tried can thus be classified under three or four divisions, based respectively upon electrical conduction through the soil or sea, magnetic induction through space, combinations of the two foregoing, and lastly, electrostatic induction.
These operate by electrostatic induction and convert mechanical work into electrostatic energy by the aid of a small initial charge which is continually being replenished or reinforced.
If this series of operations be made to depend upon the continuous rotation of a winch or handle, the arrangement constitutes an electrostatic influenceenachine.
Holtz constructed and described a large number of influence machines which were for a long time considered the most advanced development of this type of electrostatic machine.
Hence his measurements are all directly comparable with modern electrostatic measurements in which the unit of capacity is that of a sphere r centimetre in radius.
Similarly he came to see an electrified body as a centre of a system of lines of electrostatic force.
In 1846 Weber announced his famous hypothesis concerning the connexion of electrostatic and electrodynamic phenomena.
Maxwell never committed himself to a precise definition of the physical nature of electric displacement, but considered it as defining that which Faraday had called the polarization in the insulator, or, what is equivalent, the number of lines of electrostatic force passing normally through a unit of area in the dielectric. A second fundamental conception of Maxwell was that the electric displacement whilst it is changing is in effect an electric current, and creates, therefore, magnetic force.
The two systems of measurement were called respectively the electrostatic and the electromagnetic systems (see Physical Units).
Maxwell suggested new methods for the determination of this ratio of the electrostatic to the electromagnetic units, and by experiments of great ingenuity was able to show that this ratio, which is also that of the velocity of the propagation of an electromagnetic impulse through space, is identical with that of light.
After he had educated himself by the study of the phenomena of lines of magnetic force in his discoveries on electromagnetic induction, he applied the same conception to electrostatic phenomena, and thus created the notion of lines of electrostatic force and of the important function of the dielectric or non-conductor in sustaining them.
An electrometer is an instrument for measuring difference of potential, which operates by means of electrostatic force and gives the measurement either in arbitrary or in absolute units.
The upper end of the quartz fibre is rotated by a torsion head, and a metal cover serves to screen the instrument from stray electrostatic fields.
He studied the reflection and polarization of radiant heat, the magnetism of rocks, electrostatic induction, daguerrotypy, &c.
The cathode terminal is connected to the negative pole of an electrostatic machine, such as a Wimshurst or Voss machine, giving a steady pressure.
A typical barrow, in effect, is more like an ' orgone accumulator ' than an electrostatic accumulator.
The effect of lower sulfur coal blends on the performance of electrostatic precipitators and fabric filters is also covered.
For particles in aqueous solution the interparticle forces are predominantly electrostatic in origin.
There are also electrostatic fields, e.g. between battery terminals.
Rupert signaled to Mr.Matthews, to instruct his men to begin turning the huge frictional electrostatic generators once again.
The reason for this is the electrostatic repulsion of the protons.
Using electrostatic deflexion to divert and collect cells with one or more fluorescent labels enables defined subpopulations to be sorted.
A probe connects an electrostatic voltmeter to the hand.
The charge on the earth itself has its surface density given by v = - (I/47r) X125 volts per metre, =0.000331 in electrostatic units.
From this we deduce for the charge p per cubic centimetre (I/41r)Xio-5 (volt/cm 2), or 2.7 X 101 electrostatic units.
The great advantage of this air insulation is that the electrostatic capacity of the wires is low (about one-third of that which would be obtained with gutta-percha insulation), which is of the utmost importance for high-speed working or for longdistance telephonic communication.
Before the classical researches of Hertz in 1886 and 1887, many observers had noticed curious effects due to electric sparks produced at a distance which were commonly ascribed to ordinary electrostatic or electro-magnetic induction.
The dimensions of a capacity in electrostatic measure is a length (see Physical Units).
Thus the capacity of a sphere in electrostatic units (E.S.U.) is the same as the number denoting its radius in centimetres.
One large class of electrostatic voltmeters consists of a fixed metal plate or plates and a movable plate or plates, the two sets of plates forming a condenser (see Leyden Jar).
The jar has a certain capacity C which is best expressed in microfarads or electrostatic units (see Electrostatics), and is determined by the surface of the tin foil and thickness and quality of the glass.
The collar is designed to deliver a small electrostatic shock whenever your dog barks.
You have the option of setting the receiver to emit either a tone or an electrostatic stimulation when you push the button.
The electrostatic charge is comparable to the static poke you might feel if you walked on a carpet and then touched a metal object.
Ionic purifiers do not have an internal fan that pushes the air through the filters; instead, they rely on an electrostatic system.
An electrostatic collector cell then captures and destroys the particles.
Three of the best air purifiers/ionizers include the Oreck XLTower Electrostatic Air Purifier, the Sharper Image Ionic Breeze, and the Ionic Pro Electronic Air Purifier.
True to his word, his Oreck XL tower electrostatic air purifier is one of the top air purifiers on the market.
It features electrostatic plates which unlike the Oreck XL, can be cleaned with a damp cloth.
These units all operate without a fan and use electrostatic technology to attract particles.
It has in fact been found, with the very great precision of which optical experiment is capable, that all terrestrial optical phenomenareflexion, refraction, polarization linear and circular, diffraction - are entirely unaffected by the direction of the earth's motion, while the same result has recently been extended to electrostatic forces; and this is our main experimental clue.
Electrostatic voltmeters are based on the principle that when two conductors are at different potentials they attract one another with a force which varies as the square of the potential difference (P. D.) between them.
Utilizing this principle many inventors have devised forms of electrostatic voltmeter.
In other types of electrostatic instruments the movable system rotates round a horizontal axis or rests upon knife edges like a scale beam; in others again the movable system is suspended by a wire.
Hot wire voltmeters, like electrostatic voltmeters, are suitable for use with alternating currents of any frequency as well as with continuous currents, since their indications depend upon the heating power of the current, which is proportional to the square of the current and therefore to the square of the difference of potential between the terminals.
Like the corresponding ammeters, they have the great advantage that the scales are equidivisional and that there is no dead part in the scale, whereas both the electrostatic and electrothermal voltmeters, above described, labour under the disadvantage that the scale divisions are not equal but increase with rise of voltages, hence there is generally a portion of the scale near the zero point where the divisions are so close as to be useless for reading purposes and are therefore omitted.
This measurement is applicable to the measurement of high potentials, either alternating or continuous, provided that in the case of alternating currents the high resistance employed is wound non-inductively and an electrostatic voltmeter is used.