Consider two thin disks, of negligible thickness, of radius r oriented perpendicular to the x axis such that the x axis runs through the center of each disk. (figure 1)the disk centered at x-o has positive charge density η, and the disk centered at x: a has negative charge density-n, where the charge density is charge per unit area q; what is the magnitude e of the electric field at the point on the x axis with x coordinate a/2?

number of electrons for neutral cl

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

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