How unit of electric flux density is columbs per meter square
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If a flux of O passes through an area of A m^2 normal to the area then the flux density ( Denoted by D) is:
O represents flux ( Phi)
D = O / A
If a electric charge is place in the center of a sphere or virtual sphere then the electric flux on the surface of the sphere is:
D =O / A= Q}/4 pi r^2} , where r =radius of the sphere.
The SI unit of electric flux is Coulomb per meter sq
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