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Introduction: Electrical
Electric power is the rate at which electric energy is transferred by an electric circuit.
When electric current flows in a circuit, it can transfer energy to do mechanical or thermodynamic work.
Devices convert electrical energy into many useful forms, such as heat (electric heaters), light (light bulbs), motion (electric motors),
sound (loudspeakers), information technological processes (computers), or even chemical changes.
Electric power can be produced mechanically by generation, or chemically, or by direct conversion from light in photovoltaic cells.
Electric power can be stored chemically in batteries.
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