The electric potential at a point in the electric field is V. What is the electric potential energy of a charge `q_0` placed at that point?

Electric potential at a point in an electric field.

Show that the electric field intensity at a point in an electric field is equal to the negative of the potential gradient of the field at that point. E = -(dV)/(dr)

Define electric potential energy. Give its units. Calculate electric potential energy of system of n point charges.

Following are two statements about the relationship between the electric field an electric potential. If the electric field at a certain point is zero, the nthe electric potential at the same point is also zero.