•38 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 z, = 8.0 cm.What is the radius of the disk? Em ntre 0.5Em 2 z (cm) 8rm (a) (b)
•38 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 z, = 8.0 cm.What is the radius of the disk? Em ntre 0.5Em 2 z (cm) 8rm (a) (b)
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Transcribed Image Text:•38 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 z, = 8.0 cm.What is the
radius of the disk?
Em
ntre
0.5Em
2
z (cm)
8rm
(a)
(b)
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