A uniformly charged insulating rod of length 16.0 cm is bent into the shape of a semicircle as shown in the figure below. The rod has a total charge of -6.50 µC. Find the electric potential at O, the center of the semicircle. MV •0

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.