A charge 'q'is placed at the centre of the line joining two equal charges Q.The system of 3 charges will be in equilibrium, if 'q'is equal to; a)-Q/2 b)-Q/4 c) Q/2 d) Q/4   Asked Fayas Babu K   The answer is (b)  - Q / 4 For the three charges to be in equilibrium, the … Continue reading Question from Electrostatics