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A charge is moved in an electric field of a fixed charge distribution from point A to another point B slowly. The work done by external agent in doing so is `100 J`. What is the change in potential energy of the charge as it moves from A to B ? What is the work done by the electric field of the charge distribution as the charge moves from A to B ?

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DC PANDEY ENGLISH-ELECTROSTATIC POTENTIAL AND CAPACITORS-(C) Chapter exercises
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