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anonymous
 5 years ago
workdone by electric field or external agent
anonymous
 5 years ago
workdone by electric field or external agent

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what is it please explain it

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The work done by any force to move a point +ve charge from a to b is given by \[W = \int\limits_{a}^{b}F.dr\] F.dr = Fdrcos(a) where a is the angle between applied force and displacement produced. Since the work done by an external agent will obviously be due to a force in the direction of the displacement cos(a) =1. Similarly it will be 1 for electric field as it will act against the produced displacement. since work done is a vector this shown by W(E) =  W(Agent).
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