three identical metallic uncharged spheres A,B and C of radius are kept at the corners of an equilateral triangle of side d(d>>a). The fourth spheres (of radius a) which has a charge q touches A and is then removed to a position far away. B is earth and then the earth connection is removed. C is then earthed. The charge on C is______
three identical metallic uncharged spheres A,B and C of radius are kept at the corners of an equilateral triangle of side d(d>>a). The fourth spheres (of radius a) which has a charge q touches A and is then removed to a position far away. B is earth and then the earth connection is removed. C is then earthed. The charge on C is______