What term refers to the measurement of force that indicates the potential difference between two electrical charges?

The correct term for the measurement of force that indicates the potential difference between two electrical charges is voltage. Voltage, measured in volts, quantifies the electric potential energy per unit charge between two points in an electric field. It effectively represents how much potential energy is available to drive the flow of electric charge, or current, between those points.

Understanding voltage is crucial in the context of electrical safety and radiation safety practices, as improper voltage levels can lead to electrical hazards. Amperage refers specifically to the flow of electric current, while contrast pertains to differences in imaging or visual perception rather than electrical properties. Density relates to mass per unit volume and does not have relevance in this context. Thus, voltage is the most appropriate term to describe the electric potential difference.