Hey,
In the expression
1/2e E2 .5eE ^ 2(4pie r^2) energy
.5e(kq/r ^ 2) ^ 2(4 pie r ^ 2)dr=energy
.5e* 1/4 pie e * ((q^ 2/r ^ 4 )) 4 pie r ^ 2 dr
(k(q ^ 2) ) /2 (integration (1/ (r ^ 2) ) dr) from R to inf
Kq ^ 2 (in fromR to infinity (1 / r ^ 2))
kq ^ 2/2R
Moderation Team
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