A 0.500-cm-radius plastic sphere, used in a static electricity demonstration, has a uniformly distributed 40.0-pC charge on its surface. What is the electric potential just outside the sphere’s surface?
A Van de Graaff generator has a 2.00-m-diameter metal sphere with a charge of 5.00 mC on it.
What is the potential near its surface?
At what distance from its center is the potential 1.00 MV?
The charge of an electron is C and the charge of a proton is C. An oxygen atom with eight protons and three missing electrons is released near the Van de Graaff generator. What is the electrical potential energy of this atom when it is at a distance from the generator for which the potential of the electric field around the generator is 1.00 MV?