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Advanced Knowledge of Electrostatic Potential Energy and Potential Difference



Electric potential

Electric potential () at a point is defined as the amount of work done in bringing a unit positive charge from infinity to that point.
Unit of potential is .

Note: Potential is taken to be zero at infinity and at ground.


Work done by a given charge

Work done by a charge to move through a potential difference is given by
Where = Final potential and = Initial potential