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I2 7.7. A conducting sphere of radius a is imbedded in a large volume filled with a material with electric conductivity o. The sphere is

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7.7. A conducting sphere of radius a is imbedded in a large volume filled with a material with electric conductivity o. The sphere is held at potential Vo with respect to the boundary, which may be approximated as spatial infinity. Determine the current den- sity J(x), the total current /, and the resistance. Verify that the continuity equation is satisfied

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