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2. Electricity - Wikipedia

   en.wikipedia.org/wiki/Electricity

   The electric field was formally defined as the force exerted per unit charge, but the concept of potential allows for a more useful and equivalent definition: the electric field is the local gradient of the electric potential. Usually expressed in volts per metre, the vector direction of the field is the line of greatest slope of potential, and ...

3. Electricity generation - Wikipedia

   en.wikipedia.org/wiki/Electricity_generation

   Electricity generation is the process of generating electric power from sources of primary energy.For utilities in the electric power industry, it is the stage prior to its delivery (transmission, distribution, etc.) to end users or its storage, using for example, the pumped-storage method.

4. Electric power - Wikipedia

   en.wikipedia.org/wiki/Electric_power

   Electric power is the rate of transfer of electrical energy within a circuit.Its SI unit is the watt, the general unit of power, defined as one joule per second.Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively.

5. Glossary of electrical and electronics engineering - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_electrical_and...

   Electric current that reverses direction periodically. alternator An electrical machine that converts mechanical power into AC electric power. alternator synchronization The process of synchronizing an alternator to a grid or another alternator. aluminium smelting Reduction of aluminium ore to metal, by use of large amounts of electric power ...

6. Sources of electrical energy - Wikipedia

   en.wikipedia.org/wiki/Sources_of_electrical_energy

   The electric field sends the electron to the p-type material, and the hole to the n-type material. If an external current path is provided, electrical energy will be available to do work. The electron flow provides the current, and the cell's electric field creates the voltage. With both current and voltage the silicon cell has power.

7. Electric power system - Wikipedia

   en.wikipedia.org/wiki/Electric_power_system

   A steam turbine used to provide electric power. An electric power system is a network of electrical components deployed to supply, transfer, and use electric power. An example of a power system is the electrical grid that provides power to homes and industries within an extended area.

8. Electrical energy - Wikipedia

   en.wikipedia.org/wiki/Electrical_energy

   Electrical energy is energy related to forces on electrically charged particles and the movement of those particles (often electrons in wires, but not always). This energy is supplied by the combination of current and electric potential (often referred to as voltage because electric potential is measured in volts) that is delivered by a circuit (e.g., provided by an electric power utility).

9. Watt - Wikipedia

   en.wikipedia.org/wiki/Watt

   In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit).