What is the electrical potential difference that results in current flow through resistance?

The term that describes the electrical potential difference causing current to flow through a resistance is voltage. Voltage is essentially the electrical "pressure" that pushes charged electrons through a circuit. When there is a difference in electric potential between two points, it creates a movement of electrons, resulting in an electric current.

In a circuit, when a voltage is applied across a resistor, it allows current to flow based on the resistance of the component and the relationship defined by Ohm's law (V = IR), where V is voltage, I is current, and R is resistance. Thus, in the context of electrical systems, voltage is key to understanding how current moves and interacts with resistance.

The other terms relate to aspects of electrical circuits but do not describe the potential difference itself. Amperage, for example, refers to the amount of current flowing through a circuit, while Ohm's pertains to the unit of resistance. Conductance reflects how easily current can flow through a material, but none of these terms encapsulate the concept of electrical potential difference in the way that voltage does.