Please don't write "these", implying a list, which you don't provide.The SI unit of power is the watt = joules/second.
The SI unit of energy is the joule.
Watt is a unit of power. 1 Watt = 1 Joule/second; joule is the unit for energy.
The official unit for any type of energy (not just mechanical energy) is the joule. The official unit for any power (not just electrical power) is the watt, equal to joules / second.
Power; its SI unit is watt. Please note that this is notspecifically an electrical unit; "power", and the unit "watt", is the rate of energy conversion, and can be used anywhere where energy is converted - whether "work" is involved, or some other (non-mechanical) energy.
Power and energy are different physical quantities. They have their own units in SI system Unit of energy is joule and that of power is watt. Of course electrical energy is measured as kW h
If there is no power, there is no electricity. It's not flowing through the wires.
Watts. Also for any other type of power (energy / time), that is, for transfer of energy that is not electrical in nature.
That is called "power". The SI unit for power is the watt, which is equal to joules/second.
The rate of conversion of any type of energy is called power. In the international system (SI), the unit for energy is the joule; the unit for power is the watt, which is equal to joules/second.
Electrical motors convert electrical energy into mechanical energy.
The energy used to power a computer is Electrical Energy.
The amount of electrical energy is measured in kilowatt hours. Kg unit of mass and weight. These two are not comparable.
A unit (short for 'Board of Trade Unit') is used to measure energy consumption, and is equivalent to one kilowatt hour. A watt measures power, which is the rate of energy consumption. So there is no relationship between a unit and a watt.