(Solved): A total electric charge of \( 2.5{ }_{N} C \) is distributed unitosnly over the surtace of a metal ...

A total electric charge of \( 2.5{ }_{N} C \) is distributed unitosnly over the surtace of a metal sphere with a radivs of \( 28 \mathrm{~cm} \). the potential is 0 at point at infinity. (A) find the potential at \( 65 \mathrm{~cm} \) from center of sphere (B) tind the value of the potential at \( 28.0 \mathrm{~cm} \) trom center of sphere