What is Electric energy: Definition and 55 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.
When someone mentions exploatation of an electric (electrostatic) energy from clouds one would instantaneously imagine a gigantic capacitor (or some other sort of an "acumulator" for such energy) and a loud BANG(!) when thunder strikes it and polirizes it all at once; but isn't it possible to...
Supposition about heat energy transferring to electric energy
The supposition is based on static electric balance system and thermodynamics system . We suppose that a container( electron charge is not adsorbed on wall ) have tip electrode D(-100 V) ,and there is a metallic barrel(-101v) on...
hi
i am not exactly able to understand in which form or rather how electric and magnetic energy get stored in capacitor and inductor respectively... :shy:
The way to solve this, i tried is by saying F = k(q1)(q2) / r^2. So, the force between the two charges is (9x10^9)(2.6x10^-8)(5.5x10^-8) / (1.4^2). Although, from there I'm not sure where to go because that just solves for the force inbetween the two charges and not the EPE or even more...
1)two different formulas for electric field is
a)U=(1/2)Q1V1+(1/2)Q2V2+...
b)U=\int \frac{1}{2}\epsilon.E^2dv
Using these how could we perform an experiment to test where the energy located?
2)Since the electric energy density is never negative, how can the mutual electric potential of...