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Engineering, 02.03.2020 22:53 kkwolfcityouwc96
A circular beam of charge of radius a consists of electrons moving with a constant speed u along the +z direction. The bean's axis is coincident with the z axis and the electron charge density is given by rhov = -cr^2, where c is a constant and r is the radial distance from the axis of the beam. a) Determine the charge density per unit length. b) Determine the current crossing the z-plane.
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