The electric field at position, \vec r, from a point charge, Q, located at the origin, is given by: \begin{aligned} \vec E = k\frac{Q}{r^2}\hat r\end{aligned} One can visualize an electric...The electric field at position, \vec r, from a point charge, Q, located at the origin, is given by: \begin{aligned} \vec E = k\frac{Q}{r^2}\hat r\end{aligned} One can visualize an electric field by using “field lines”. The field vector at any point in space has a magnitude that is proportional to the number of field lines at that point, and a direction that is tangent to the field lines at that point.
