(a) Uncharged metal sphere.
(b) Bringing negatively charged rod near to the sphere.
(c) On earthing the metal sphere by conduction wire, the negative charge passes to earth, on the other hand, due to attraction force of negative charges, the positive charge bound to it.
(d) On breaking the earthing, the positive charge remains bound to sphere.
(e) On remaining electrified rod, the positive charge spreads uniformly on sphere.
