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A small sphere of radius r1 and charge q...

A small sphere of radius `r_1` and charge `q_1` is enclosed by a spherical shell of radius `r_2` and charge `q_2` Show that if `q_1` is positive, charge will necessary flow from the sphere to the shell (when the two are connected by a wire) no matter what the charge `q_2` on the shell is.

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