Question

Figure (a) shows a narrow charged solid cylinder that is coaxial with a larger charged cylindrical shell. Both are nonconducting and thin and have uniform surface charge densities on their outer surfaces. Figure (b) gives the radial component E of the electric field versus radial distance r from the common axis. The vertical axis scale is set by Es = 3.6 × 103 N/C. What is the linear charge density of the shell?

E 0 14.4 -ES r(cm)

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Answer #1

ES 0 IP 14.4 -ES r(cm) (a) (6) 1 scale in vendical = 3-6710?_ 1-281020/ 1 scale in horisontal = 14. 12 cm let linear chaye deE2= E + 2k dz ४ —2x1.2X15 = 1.2x13 + 2X9X10% dz 8.4x102 2X9X100 dz 8.48102 =-3X1.2X10 dz=-1.68x108 cm 3 limen charge density

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