Which of the following statements is true?

Question

Quizplus · Accepted Answer

The electric potential at a point is the work done in bringing a unit positive charge from infinity to that point. Between two positive charges, there can be a point where the potential contributions from both charges cancel out, making the net electric potential zero. This is because electric potential is a scalar quantity and can add algebraically. The other statements are incorrect: A) the extra charge on a conductor resides on the surface, not uniformly over the volume; B) there can be a point where the electric fields from two positive charges cancel out, making the net field zero; C) both positive and negative charges can be attracted to a metal surface due to induction; D) good insulators do not conduct electricity well primarily because their atomic structure does not allow free flow of electrons, not because of doping with impurities.

Which of the Following Statements Is True