True power values are given in what units?

True power values are given in what units?

• A. Watts
• B. Joules
• C. Volts
• D. Amps

Answer: (A)

True power represents the real rate at which electrical energy is converted into work or heat in a circuit, so its unit is the watt. In AC circuits, real power is P = V × I × cos φ, where cos φ is the power factor; watts reflect the portion of voltage times current that actually does useful work. Joules are units of energy, not power; volts measure potential difference and amps measure current, not power themselves. There are related terms like apparent power (in volt-amperes) and reactive power (in VARs), but true power is specifically measured in watts.

True power represents the real rate at which electrical energy is converted into work or heat in a circuit, so its unit is the watt. In AC circuits, real power is P = V × I × cos φ, where cos φ is the power factor; watts reflect the portion of voltage times current that actually does useful work. Joules are units of energy, not power; volts measure potential difference and amps measure current, not power themselves. There are related terms like apparent power (in volt-amperes) and reactive power (in VARs), but true power is specifically measured in watts.