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Work (electrical) : ウィキペディア英語版
Work (electrical)

Electrical work is the work done on a charged particle by an electric field. The equation for 'electrical' work is equivalent to that of 'mechanical' work:
:W = Q \int_^ \mathbf \cdot \, d \mathbf = Q \int_^ \frac \cdot \, d \mathbf= \int_^ \mathbf \cdot \, d \mathbf
where
:''Q'' is the charge of the particle, q, the unit charge
:''E'' is the electric field, which at a location is the force at that location divided by a unit ('test') charge
:''FE'' is the Coulomb (electric) force
:''r'' is the displacement
:''\cdot'' is the dot product
The electrical work per unit of charge, when moving a negligible test charge between two points, is defined as the voltage between those points.
==Overview==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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