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You are watching: How much work does the electric field do in moving a 7.7
The potential difference between the 2 points, or voltage `Delta V,`is identified as the occupational it would take to move a hopeful unit charge from the very first point come the second, against the electric force listed by the field. Note that the work-related in this definition is done by some external agent,...
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The potential difference between the two points, or voltage `Delta V,`is identified as the work it would take to move a optimistic unit charge from the very first point to the second, versus the electrical force detailed by the field. Note that the work-related in this definition is excellent by some outside agent, not the electric field.
The work-related it takes come move any type of charge v potential difference `DeltaV` is then
The job-related done by the electric field is the opposite of this quantity:
Plugging in the values of charge and voltage offered in the problem, the work done by the electrical field is
Note that the work-related done through the field is positive. This makes sense since a an adverse charge put in the electrical field will relocate towards the allude with higher potential, so the its potential energy will decrease.
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latest answer posted April 23, 2013 in ~ 1:42:24 am
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