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Tuesday, May 27, 2014

Fat Electrons and the Learned Inverse Square

Areas of two concentric spheres of radii R1 and R2,

 Area1=4πR21

Area2=4πR22

If we consider flux emanating from a constant source of W, then

fluxR1=W4πR21

fluxR2=W4πR22

from which we have the inverse square law.

flux1R2

However, if

W43πR3

where the volume immediately below is of concern, like space density, then

fluxR3 as in the case of dielectric in electrostatic.

This is the case when electrons are trapped in a oil drop, a dielectric.  The factor of 13 is serious.  The term R may cancel in the final formulation, especially if the same droplet is swinging about, but the factor 13 does not go away no matter how you orientate the E flux.

This is how the fat electrons slimmed down.