Homework Help: physics

Posted by jkiyuhglj on Sunday, September 20, 2009 at 2:06pm.

The potential V at a distance of 25.0 cm from a very small charged sphere is 48.0 V, with V taken to be zero at an infinite distance from the sphere. A) If the sphere is treated as a point charge, what is its charge? B) What is the potential at a distance of 75.0 cm from the sphere?

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