What is the term for the electrical charge difference between two different areas?

The term for the electrical charge difference between two different areas is commonly referred to as voltage. Voltage measures the potential energy per unit charge that drives electric current through a circuit. It represents the difference in electric potential energy between the two points, indicating how much work can be done when a charge moves from one point to another.

When considering the options, current refers to the flow of electric charge, resistance is the opposition to that flow, and potential can refer more broadly to the energy available in a system, not specifically to the charge difference between two areas. Therefore, voltage is the accurate term to describe the electrical charge difference and is essential for understanding how electricity behaves in various systems.