A positively charged metal sphere A is brought into contact with an uncharged metal sphere B.As a result:

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When a positively charged metal sphere A is brought into contact with an uncharged metal sphere B, charge redistribution occurs. Charge flows from the charged sphere to the uncharged one until both have the same charge per unit area. Since sphere A is positively charged, both spheres end up being positively charged after contact.

A Positively Charged Metal Sphere a Is Brought into Contact