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The displacement current flows through the dielectric between the plates when the capacitor is charging or discharging and is equal to the current in the condutors connected to the plates. It is not a movement of charge carriers as in the conductors.
It is predicted by Maxwell's equations. It gives rise to a magnetic field as does a current in a conductor.
Displacement current and phase shift are not the same thing, but are related. The phase shift is the relation of the AC voltage across the capacitor and the current thru it. The current thru the capacitor lags the voltage waveform because it is dependent on the rate of change of voltage.
And I have never heard of displacement current in an inductor.
As I said in a previous post, the displacement current flows through the dielectric of a capacitor (be it solid, liquid or a vacuum) when it is charging or discharging.
According to **broken link removed**, displacement current isn't really a current at all. It is a name that Maxwell came up with to describe the term that quantifies the creation of a magnetic field by a changing electric field.
When a capacitor is charged, the charge accumulates on the plates. The capacitor will work in a vacuum, so there does not have to be any charged particles in between the plates. There is an electrostatic field between the plates, which can be enhanced by using a dielectric between the plates. Forget about displacement current, it is not a useful concept.
like russ said displacement is not a useful concept.It doesnt actually do anything.As said in the previous posts its the current through the dielectric.
And the phase difference is the difference between the current and voltage.
This is how i understand it;in a capacitor,
when u connect an uncharged capacitor say across DC.Ther is potential difference in the circuit.Uncharged Capacitor and Dc source.So a current begins to flow.Slowly the capacitor gets charged or develops voltage.And the phase difference of this current and voltage is 90 deg.thast what phase difference is.
According to **broken link removed**, displacement current isn't really a current at all. It is a name that Maxwell came up with to describe the term that quantifies the creation of a magnetic field by a changing electric field.
It depends upon how you define current. The conventional view is charge carriers moving in a conductor or in a vacuum such as in a CRT. But I suspect there may be a more fundamental definition.
After relativity, Einstein spent the rest of his life looking for the "theory of everything". Recent developments in Physics tend to indicate that the string theory may be the much sought "theory of everything". If so, they may discover that a current is really a "flow of strings" and the movement of charge carriers is consequental, rather than absolute.
If this proves to be the case, then the displacement current could be a "real current". Who knows? I don't.
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