Question

what is the vector formula for coulomb's law?

Answer 1

just replace 1/r^2 by r(vector)/r^3 in coulombs law.

Answer 2

http://en.wikibooks.org/wiki/Electrodynamics/Coulombs_Law

Answer 3

E and r are vectors, E is electric field, r is position vector.
\[E = 1/(4\pi \epsilon _{0})(qr/||r||^3)\]

Answer 4

abtrehearn - careful, that's not Coulomb's law.... Coulomb's law gives the vector force exerted by one charge on another, not the electric field... E vector = F vector/q, force per unit charge