Two large conducting spheres carrying charges Q1 and Q2 are brought close to each other. Is the magnitude of the electrostatic force between them exactly given by Q1Q2/4πε0r2, where r is the distance between their centres?
According to the question, two large conducting spheres with charge Q1 and Q2 are placed such that displacement between their center is r. Then, the magnitude of electrostatic force between the two spheres is not exactly equal to 4πϵ0r2Q1Q2 Since the magnitude of electrostatic force between two point charges Q1 and Q2 placed at a distance r is given by the relation, F=4πϵ0r2Q1Q2