Which unit measures the resistance to electron flow?

The correct answer is Ohms, as this unit specifically quantifies the resistance to the flow of electric current. In the context of electronics and electrical engineering, Ohm’s Law is a fundamental principle that relates voltage (the potential difference), current (the flow of electric charge), and resistance. According to this law, resistance is the ratio of voltage to current, indicating how much opposition the material provides to the flow of electric current. When measuring resistance, Ohms (symbolized as Ω) gives a direct measurement of how strongly a component resists the movement of electrons.

Voltage, on the other hand, measures the potential difference that drives the flow of electrons, while amperage describes the actual flow of current in a circuit. Wattage measures the power consumption or generation in a circuit but does not provide information about resistance. Understanding these distinctions can help clarify the role of each parameter in electrical systems.