Voltage measures the electrical force that pushes electrons.

• A. It measures resistance
• B. It measures current
• C. It measures power
• D. True

Answer: (D)

Voltage is the electrical potential difference that pushes charges through a circuit. It acts like the pressure in a hose that drives electrons to move; the higher the voltage, the stronger the push, and thus the tendency for current to flow given the path (resistance) available. This is why the statement is true: voltage is the factor that creates the driving force for electron flow. It’s not a direct measure of resistance, current, or power themselves—those are separate quantities (resistance opposes flow, current is the rate of flow, and power is the rate of energy transfer). In short, voltage provides the push that makes electrons move.