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A solid nonconducting cylinder of radius R = 5.00 cm and length L = 15.0 cm has a uniform positive charge distribution of volume charge density p= 20.0 pC/m3 . (a) What is the electric potential at pint P? (b) What are the magnitude and direction of the electric field at point P? (where a = 10 cm, and P is perpendicular to the center of the cylinde
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