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Two positive point charges each have a charge of +q and are fixed on the y axis at y = +a and y = -a. (Use the following as necessary: k, q, a, and x.)
(a) Find the electric potential at any point on the x axis.
V(x) =______________?________________
(b) Use your result in part (a) to find the electric field at any point on the x axis.
(x) = ______________?__________________
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