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electrometer

[ih-lek-trom-i-ter, ee-lek-] /ɪ lɛkˈtrɒm ɪ tər, ˌi lɛk-/
noun
1.
a calibrated device used for measuring extremely low voltages.
Origin
1945-1950
1945-50; electro- + -meter
Related forms
electrometric
[ih-lek-troh-me-trik] /ɪˌlɛk troʊˈmɛ trɪk/ (Show IPA),
electrometrical, adjective
electrometrically, adverb
electrometry, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for electrometer
  • The remaining positively charged particles are collected on a filter inside an electrometer, where the charge is measured.
British Dictionary definitions for electrometer

electrometer

/ɪlɛkˈtrɒmɪtə; ˌiːlɛk-/
noun
1.
an instrument for detecting or determining the magnitude of a potential difference or charge by the electrostatic forces between charged bodies
Derived Forms
electrometric (ɪˌlɛktrəʊˈmɛtrɪk), electrometrical, adjective
electrometrically, adverb
electrometry, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for electrometer

instrument designed to measure very small voltages and currents. The quadrant, Lindermann, Hoffman, and Wulf electrometers measure electrical potential between charged elements (e.g., plates or fine quartz fibres) within the housings of the electrometer. The sensitivity of these instruments is about 0.01 volt.

Learn more about electrometer with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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