Volts measure the electrical pressure. Which option correctly reflects this concept?

• A. The amount of electrical current
• B. The electrical pressure
• C. The electrical resistance
• D. The electrical power

Answer: (B)

Volts reflect electrical pressure—the potential difference that pushes electrons through a conductor. Think of voltage as the driving force behind current, like water pressure pushing water through a hose. The actual flow of electrons is the current, which depends on both this pushing force and the circuit’s resistance (which opposes flow). Power, on the other hand, is the rate at which energy is used or transferred and equals voltage times current. So describing volts as the electrical pressure matches how voltage functions in a circuit.