12 Figure 23-36 shows two non- conducting spherical shells fixed in place. Shell 1 has uniform surface charge density +6.0 µC/m² on its outer surface and radius 3.0 cm; shell 2 has uniform surface charge density +4.0 μC/m² on its outer surface and radius 2.0 cm; the shell centers are separated by L 10 cm. = In unit-vector notation, what is the net electric field at x = 2.0 cm? Shell 1 Shell 2 L→ Figure 23-36 Problem 12. x

Consider a cylindrically symmetric distribution of charge.  It consists of a tube of charge of radius 0.6 m with a linear charge density of 284.8 x 10-12 C/m that is surrounded by a second tube of charge of radius 4.1 m with linear charge density -188.5 x 10-12 C/m.  Calculate the magnitude of the electric field, in N/C, 1.7 m away from the axis of the distribution.  Use ?0ε0 = 8.85 x 10-12 F/m. (Please answer to the fourth decimal place - i.e 14.3225)

Consider a very large, flat plate with surface charge density 3.46 nC/m2. Give the magnitude of the electric field (in N/C) a distance 7.54 m from the plate.

A point charge of -3.00 micro Coulomb is located in the center of a spherical cavity of radius 6.50 cm that, in turn, is  at the center of an insulating charged solid sphere. The charge density in the solid is 7.35 x 10-4 C/m3. Calculate the electric field (in N/C) inside the solid at a distance of 9.50 cm from the center of the cavity. (Don't express your answers in scientific notation)