A uniformly charged insulating rod of length 18.0 cm is bent into the shape of a semicircle as shown in the figure below. The rod has a total charge of -7.00 µC. Find the electric potential at O, the center of the semicircle. A uniformly charged insulating rod of length 18.0 cm is bent into the shape of a semicircle as shown in the figure below.The rod has a total charge of -7.00 μC. Find the electric potential at O, the center of the semicircle.MV(

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