PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields
Problem
Three charges +Q , q , +Q are placed respectively, at distance, d/2 and d from the origin, on the x -axis. If the net force experienced by +Q , placed at x=0 , is zero, then value of q is: [Main 9 Jan. 2019 (I)]
(1) −Q/4
(2) +Q/2
(3) +Q/4
(4) −Q/2