Hi guys! So I have been researching the electric field, and I have come upon some interesting equations that confused me a little (all from wikipedia): , , and with V being the same as psi. Doing the algebra, I would get (Q/4πε0)*(r-hat/|r|2)=-∇(Q/4πε0r)-∂A/∂t. Now in the case that A does not change with time, we would get that taking the negative gradient is equal to multiplying by r-hat/|r|. Is this correct?