Question: what is the magnitude of the electric field intensity at a point?
Answer: Here are some facts about the electric field from point charges: the magnitude of the electric field (E) produced by a point charge with a charge of magnitude Q, at a point a distance r away from the point charge, is given by the equation E = kQ/r2, where k is a constant with a value of 8.99 x 109 N m2/C2.