[" Two identical metal spheres possess "+60C" and "],[-20C" of charges.They are brought in contact "],[" and then separated by "10cm" .The force "],[" between them is "]

Two identical metal spheres posses +60C and -20C of charges .They are brought in contact and then separated by 10cm .the force between them is

Two metal sphere of capacitance C_(1) andC_(2) carry some charges. They are put in contact and then separated. If final charges Q_(1) and Q_(2) on them, then:

Two identical metal sphere have charges +15 mu C and +25 mu C and are separated by a distance . If the spheres are first brought into contact and then separated to the original distance then the ratio of the force between them to the previous force is

Two identical conducting spheres A and B, carry equal charge. They are separated by a distance much larger than their diameters, and the force between them is F. A third identical conducting spheres, C,is uncharged. Sphere C is first touched to A, then to B, and then removed. As a result, the force between A and B would be equal to :

Two identical conducting spheres A and B, carry equal charge. They are separated by a distance much larger than their diameters, and the force between them is F. A third identical conducting spheres, C,is uncharged. Sphere C is first touched to A, then to B, and then removed. As a result, the force between A and B would be equal to :

Two identical conducting balls A and B have charges- Q and + 3Q respectively. They are brought in contact with each other and then separated by a distance d part. Find the nature of the Coulomb force between them.