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A spherical shell of radius R(1) with a ...

A spherical shell of radius `R_(1)` with a uniform charge q has a point charge `q_0` at its center. Find the work performed by the electric forces during the shell expansion from radius `R_(1)` to radius `R_(2)`.

Text Solution

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The correct Answer is:
`W_(el)=(q(q_(0)+q//2))/(8pi epsi_(0)R), W_("ext")=-(q(q_(0)+q//2))/(8 pi epsi_(0)R)`
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