A spherical shell of inner radius 20 cm and outer radius

A spherical shell of inner radius 2.0 cm and outer radius 6.0 cm is charged to +9 nC A point charge of -6 nC is placed at the center of the shell.

A. What are the charges, Q1 and Q2 on the inner and the outer surfaces of the shell?

B. What are the electric fields at r=1 cm , 4cm and 8cm

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A spherical shell of inner radius 20 cm and outer radius : a spherical shell of inner radius 2.0 cm and outer radius 6.0 cm is charged to 9 nc a point charge of -6 nc is placed

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