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Related to electrostatic unit: Electrostatic unit of charge
e·lec·tro·stat·ic u·nit (esu),
the unit in an absolute system (CGS) of units using static electricity; for example, statampere, statcoulomb, statfarad, stathenry, statvolt.
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ESU or ESE (from the German elektrostatische Einheit)
Any electrical unit of measure based on the attraction or repulsion of a static charge, as distinguished from an electromagnetic unit, which is defined in terms of the attraction or repulsion of magnetic poles.
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