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Sphere of charge

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Please solve step by step as simply as possible. The teacher gave this info out, but I can't make sense of it. I don't think it's even right - is it? See the attached file for diagrams.

Questions:

(a) what is the electric field ...
(b) what is the field before and the field after A touches B
(c) B touched to A, then placed at ...
(d) What is potential at each sphere before and after B touches A

Please see attached for complete questions and diagram

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Solution Summary

The solution provides a brief overview of electric fields, potential in conductors, and the Guass Law for a sphere, as well as a solution to a problem regarding the sphere of change. Detailed calculations and diagrams are provided.

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