fionashrek
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Homework Statement
Charge 0 x 10-9 C is placed on a conducting spherical shell that has an inner radius of 4.8 cm and an outer radius of 6.2 cm. A point charge (-1.9) x 10-9 C is placed inside the shell, at the center. What is the magnitude of the electric field of this configuration, at a distance 1.3 m from the center of the shell?