power of electricity

[agachak]

how does energy work

is electricy only form of energy we can produce or is there other forms of electrictys we can at least in theory produce first think of basic idea of power generation

then try to think how other forms of energy could work

[elfmotat]

It depends on what you mean by "electricity." If you mean the power (energy per unit time) produced by an electric current (i.e. a current through a wire), then it's simply:

 

[math]P=IV[/math]

 

Where [math]I[/math] is the current in the wire and [math]V[/math] is the induced voltage in the wire. If you mean the energy-density (energy per unit volume) of the electric field, it's just:

 

[math]u=\frac{1}{2}\epsilon_0 |\mathbf{E}|^2[/math]

 

where [math]\epsilon_0[/math] is the vacuum permittivity and [math]|\mathbf{E}|[/math] is the magnitude of the electric field.

[swansont]

Energy is a property of things, not a thing unto itself. There are many forms in which this property manifests itself — forming chemical and nuclear bonds, position in a gravitational field, motion, light, gases under pressure, and more.

[Enthalpy]

"Sometimes" energy is not linked with objects, for instance the light we receive from a star, a galaxy, or particles, disappeared for a long time.

 

As well, in a capacitor, electric energy is not stored in the electrodes but between them, possibly in vacuum. Same for magnetic energy. The electrodes, windings, cavity walls... are only a way to dump or recollect energy in vacuum.

[Mellinia]

If you mean how does electricity do work, i.e. how does electrons in motion do work, you might want to understand how electric fields do work first. Because the concept is (almost) same.