(1) The force on Q1 is repulsive.
(2) The force on Q2 is the same in magnitude as that on Q1.
(3) As the distance between them decreases, the force on Q1 increases linearly.
(4) The force on Q2 is along the line joining them.
(5) A point charge Q3 = -3 nC located at the midpoint between Q1 and Q2 experiences no net force.
Which of the following statements are incorrect?