The discussion clarifies the correct formula for calculating work done in an electric field when moving a positive charge from point A to point B. The accurate formula is the difference in potential energy, expressed as "work done = potential energy at B - potential energy at A." The alternative formula, "potential at A - potential at B," is incorrect as it does not account for the work required to move the charge against the electric field. The distinction between these formulas is crucial for accurate calculations in electrostatics.
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You are asking of both formulae are right for the same situation? I don't think you can mean that because one must be wrong. Do you need to reword your question? The change in potential is the opposite sign if the journey is in the other direction. (That's sort of obvious really)Suyash Singh said:work done in taking positive charge from A to B in electric field E=
potential energy at B - potential energy at A
OR
potential at A-potential at B
Am i correct in both formula?