(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

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Work done by external forces in moving a unit positive charge from A at potential V_{a}to B at potential V_{b}is V_{b}-V_{a}

2. Relevant equations

basic electrostatics.

3. The attempt at a solution

dW -F.dr=-Dw

if a unit charge move from V_{a}to V_{b}then change in potential energy will V_{b}-V_{a}. So dV=V_{b}-V_{a}so dW=V_{a}-V_{b}

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# Homework Help: Basic electrostatics's potential difference question.

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