Since according to Ohm's law current is inversely proportional to How is it possible that current flows in a circuit with capacitor This answer is perhaps more than one might want to know, but it is part of the story of electricity that is worth telling.
However, displacement current creates magnetic fields just as conduction current does. One might guess that this displacement current has no real effects other than to "conserve" current. The displacement current flows from one plate to the other, through the dielectric whenever current flows into or out of the capacitor plates and has the exact same magnitude as the current flowing through the capacitor's terminals. On the opposite plate of the capacitor, a similar process occurs, but with opposite electrical polarity. This causes, or perhaps "is" a displacement current.
As the electrons accumulate, the electric flux density changes. When electron current flows into one side of a capacitor, the electrons accumulate, as there is no place for them to go. Displacement current density is proportional to the time derivative of the change of electric flux density. Displacement current plays an essential role in Maxwell's equations.
It is was people usually think of when the word "current" is usedĭisplacement current is another form of current, first recognized by Maxwell. Since this is a physics q and a, a physics explanation is in order.Ĭonduction current is a net flow of charges.
0 kommentar(er)
