4.1 point charges q, = 1 nc and q2 = 2 nc are at a distance apart. which of the following statements are incorrect? (a) the force on ql is repulsive. (b) the force on q2 is the same in magnitude as that on qx. (c) as the distance between them decreases, the force on ql increases linearly. (d) the force on q2 is along the line joining them. (e) a point charge q3 = — 3 nc located at the midpoint between q{ and q2 experiences no net force