Problem A11:
In the figure above, there is a uniformly charged non-conducting sphere of radius R.
What is the ratio of the electric field E_{1} at the point r_{1}=R/n_{1} to the
electric field E_{2}at the point r_{2}=n_{2}R? That is, if
E_{1}/E_{2} = n_{3}, what is n_{3}?

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