Figure 22-58a shows a circular disk that is uniformly
Chapter , Problem 38(choose chapter or problem)
Figure 22-58a shows a circular disk that is uniformly charged. The central z axis is perpendicular to the disk face, with the origin at the disk. Figure 22-58b gives the magnitude of the electric field along that axis in terms of the maximum magnitude Em at the disk surface. The z axis scale is set by zs ! 8.0 cm.What is the radius of the disk?
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