AP PHYSICS PLEASE HELP

A spherical surface has a radious of .150 meters. A charge of +85.0 uC is placed on the sphere.
A. decribe what happens to the electric potential of a -5.0 pC charge that is moved from a very far distance from the sphere to a point 0.100 meters away from the sphere.
B. Decribe what happens to the electrical potential energy of the -5.0 p

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  1. Describe? Goodness

    a) potential= kQ/r where r=.250microC

    b) don't know, question incomplete.

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    bobpursley
  2. B. Decribe what happens to the electrical potential energy of the -5.0 pC charge as it is moved the distance described in A.

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