anonymous
  • anonymous
workdone by electric field or external agent
Physics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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shadowfiend
  • shadowfiend
What about it?
anonymous
  • anonymous
explain
anonymous
  • anonymous
what is it please explain it

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anonymous
  • anonymous
The 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 = |F||dr|cos(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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