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A solid uniformly charged ficed non-cond...

A solid uniformly charged ficed non-conducting sphere of total charge Q and radius R contains a tunnel of negligible diameter. If a point charge '-q' of mass 'm' is released at rest from point P as shown in figure then find out its velocity at following points

(i) At the surface of sphere
(ii) At the centre of the sphere

Text Solution

Verified by Experts

The correct Answer is:
(i) `v_("surface")=sqrt((qQ)/(4pi in_(0) mR))`,
(ii) `v_("centre")=sqrt((qQ)/(2pi in_(0) mR))`
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