What is Electric energy: Definition and 54 Discussions

Electrical energy is energy derived as a result of movement of electrons. When used loosely, electrical energy refers to energy that has been converted from electric potential energy. This energy is supplied by the combination of electric current and electric potential that is delivered by an electrical circuit (e.g., provided by an electric power utility). At the point that this electric potential energy has been converted to another type of energy, it ceases to be electric potential energy.
Thus, all electrical energy is potential energy before it is delivered to the end-use. Once converted from potential energy, electrical energy can always be called another type of energy (heat, light, motion, etc.).
Electrical energy is usually sold by the kilowatt hour (1 kW·h = 3.6 MJ) which is the product of the power in kilowatts multiplied by running time in hours. Electric utilities measure energy using an electricity meter, which keeps a running total of the electric energy delivered to a customer.

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  1. S

    Minimizing the voltage drop across a capacitor (solution shown)

    The following is the question and the solution to the question. I understand the solution to the part where you find the Ceq and derive Qeq from the equation Q = Ceq*V. However, I do not understand where V1 = V0-V2 come from. When calculating the minimum voltage, how do you come up with the...
  2. K

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  3. adamaero

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  4. hugo_faurand

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  5. H

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  6. N

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  7. I

    Electric Energy: How is it Gained and Lost in Electricity?

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  8. O

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  9. A

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  10. S

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  11. L

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  12. A

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  13. C

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  14. S

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  15. NotADuckFan

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  16. B

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  17. Y

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  18. D

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  19. N

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  20. davidbenari

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  21. D

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  22. M

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  23. A

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  25. A

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  26. L

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  28. S

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  29. L

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  30. N

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  31. V

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  32. T

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  33. T

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  34. P

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  35. A

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  36. S

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  37. K

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  38. B

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  39. H

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  40. M

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  41. N

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  42. V

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  43. J

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  44. S

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  45. I

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  46. A

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  47. L

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  48. ranger

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  49. H

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  50. S

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