In what unit is true power measured?

True power is measured in watts, which quantifies the actual power consumed by an electrical circuit in performing useful work. Watts represent the rate at which energy is transferred or converted and are calculated as the product of voltage (in volts) and current (in amperes) when considering the phase angles in AC systems. This distinguishes true power from apparent power, which is measured in volt-amperes, and reactive power, which is measured in volt-amperes reactive (VAR). Understanding the concept of true power is crucial in electrical systems since it reflects the efficient use of electrical energy in powering devices, as opposed to just the theoretical capacity indicated by voltage and current alone.