Let V(0) be the potential at the origin ...

Let `V_(0)` be the potential at the origin in an electric field `vecE=E_(x)hati+E_(y)hatj`. The potential at the point `(x,y)` is

`V_(@)+xE_(x)+yE_(y)`

`V_(@)+xE_(x)-yE_(y)`

`V_(@)-xE_(x)-yE_(y)`

`sqrt((x^(2)+y^(2)))sqrt((E_(x)^(2)+E_(y)^(2)))-V_(@)`

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