Watts. Also for any other type of power (energy / time), that is, for transfer of energy that is not electrical in nature.
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The unit used to measure electric power is the watt (W). It represents the rate at which energy is consumed or produced in an electrical circuit.
In the United Kingdom, electricity companies charge their customers by the unit. The term 'unit' is short for the obsolete expression 'Board of Trade Unit' and is a measurement of electrical energy, equivalent to a kilowatt hour. So, 1 unit = 1 kW.h
Amps measure electrical current, while horsepower measures the power output of an engine or motor. Amps are used in electrical circuits to measure the flow of electricity, while horsepower is a unit of measure for mechanical power.
The unit used to measure voltage is the volt, symbolized as "V". It is the representation of electric potential difference or electromotive force in an electrical circuit.
No, mvar (megavolt-ampere reactive) is a unit of apparent power while MVA (megavolt-ampere) is a unit of real power. Mvar is used to measure reactive power, while MVA is used to measure total power (both real and reactive).
The unit used to measure the magnitude of current is the ampere (A). It represents the flow of electric charge through a circuit.