Topic: Electric charge, conservation, Coulomb's law, superposition· Electrostatics
Two identical charged conducting spheres A and B have their centres separated by a certain distance. Charge on each sphere is q and the force of repulsion between them is F. A third identical uncharged conducting sphere is brought in contact with sph…
Two identical charged conducting spheres A and B have their centres separated by a certain distance. Charge on each sphere is q and the force of repulsion between them is F. A third identical uncharged conducting sphere is brought in contact with sphere A first and then with B and finally removed from both. New force of repulsion between spheres A and B (Radii of A and B are negligible compared to the distance of separation so that for calculating force between them they can be considered as point charges) is best given as :
1. \(\frac{3F}{5}\)
2. \(\frac{2F}{3}\)
3. \(\frac{F}{2}\)
4. \(\frac{3F}{8}\)