DC circuitsQuestion 540 of 1506

Voltage is measured as potential energy per what?

  1. Unit charge
  2. Unit length
  3. Unit time
  4. Unit resistance
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Correct answer: Unit charge

Voltage is energy per unit of charge.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 1.4: Voltage and Current

Practice dc circuits

Questions last reviewed: 18 October 2026