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Electromagnetic Field and electromagnetic wave: Study Notes: Electric Flux and Electric Flux Density

Source: Internet
Author: User
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The Electric Flux Density of the point charge at the radius R is:

D= Q/(4 π R2)Ar

Black italics represent vectors.

In the above formula, 4 π R2 is the formula of the Ball Surface Area. Based on this, we can understand what the "Electric Flux Density" and "Electric Flux" mean.

It can be inferred that the Electric Flux passed through a closed surface is equal to the total charge surrounded by the surface (Gaussian Law ).

When space electrical flux density is known and a surface electrical flux is required, only the electrical flux density component perpendicular to the surface is involved in the calculation.

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Related Keywords:
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