"Electric flux density is the electric flux passing through some unit area, and its direction is perpendicular to that unit area."
Explanation:
"Electric flux density", when we break down this sentence into "electric flux" and "density".
Then it is easy to understand that, the density of electric flux across some area. Consider there is a unit area shown below.
Electric flux is passing through this, in direction perpendicular to the unit area. The amount of electric flux passing through this unit area, in direction perpendicular to the unit area is called Electric flux density.
Formula:
When we write mathematically the electric flux density it is equal to the product of electric field E and permittivity of material.
D=Ɛ.E
Unit:
The unit of electric flux density is coulombs per meter squared.
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