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An instrument used to detect the presence, sign, and in some configurations the magnitude of an electric charge by the mutual attraction or repulsion of metal foils or pith balls.

e·lec′tro·scop′ic (-skŏp′ĭk) adj.


(General Physics) an apparatus for detecting an electric charge, typically consisting of a rod holding two gold foils that separate when a charge is applied
electroscopic adj


(ɪˈlɛk trəˌskoʊp)

a device for detecting the presence and determining the sign of electric charges by means of electrostatic attraction and repulsion, often between two pieces of gold leaf enclosed in a glass-walled chamber.
e•lec`tro•scop′ic (-ˈskɒp ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.electroscope - measuring instrument that detects electric chargeelectroscope - measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something


nElektroskop nt


[ɪˈlɛktrəʊˌskəʊp] nelettroscopio
References in periodicals archive ?
The set included an electroscope to measure the radioactivity of the samples provided, but a warning stated that "users should not take ore samples out of their jars.
As well as magnets and compasses and a magnetometer to measure the Earth's magnetic field, we had Geiger counters and an electroscope to measure cosmic rays.
ELECTROSCOPES IN SPACE: What is an electroscope and can one be made in micro-gravity?
the electroscope, the ionization chamber, and the counting tube.
In 1912 in Austria, Victor Hess was the first to identify this radiation when he found his electroscope discharging more rapidly as he ascended in a balloon.
This blunt statement reflects, in part, the development of technology: since Americans can simply "tune in" to hear sermons on the electroscope, church buildings are unnecessary.
The Parade Sunday supplement had instructions for making an electroscope radiation meter.
68) However, when it came to explaining Gilbert's significance to contemporary audiences, such as in illustrated lectures, Thompson did not hesitate to employ current terms, freely equating the untranslated term "versorium" (a swinging needle), for example, with the modern electroscope.
Safety videos are shown in the first area of the bus but the second is filled with interactive displays, including a hand-wind generator, an arc generator, a plasma ball and an electroscope.