Electrical Potential in a Uniform Field

The electrical potential at a point is the electrical potential energy that one Coulomb of charge would have at that point.

Electrical Potential has the symbol V and is measured in   J / C   or    V

Potential difference (Voltage in Volts) is the just the difference in EPE between two points. We nearly always take the zero of potential, where a charge would have no potential energy, to be Earth.

What about the potential at points in between the plates? As the field is uniform the force on any charge between the plates would be the same at any point. The energy transferred between points an equal distance apart would be the same ( from W = F x d ) so the potential must vary uniformly with distance.

Question 8, 9