It is observed that two point charges of −2 coulombs and −10 coulombs, when placed at a certain dist

Question

It is observed that two point charges of −2 coulombs and −10 coulombs, when placed at a certain distance in a medium, repel each other with a force of 20 newtons. If a charge of +2 coulombs is given to each of these charges, the force between them will now be

Professor PC Thomas Classes · Answer

Initial charges: $q_1 = -2C$, $q_2 = -10C$, Force = 20N. After adding +2C to each: $q_1 = 0C$, $q_2 = -8C$. Since one charge is zero, the force will be zero.