Anonconducting sphere contains positive charge distributed uniformly throughout its volume. which statements about the potential due to this sphere are true? all potentials are measured relative to infinity. (there may be more than one correct choice)
a) the potential is highest at the center of the sphere. b) the potential at the center of the sphere is the same as the potential at the surface. c) the potential at the surface is higher than the potential at the center. d) the potential at the center is the same as the potential at infinity. e) the potential at the center of the sphere is zero.

The experiments with static charges were done by:

Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.