Rubbing one object on another is one of the most common examples of static electricity. When we rub one object on another, electrons are transferred from one object to the other. As a result, the object that has given electrons becomes positively charged, while the object that has taken the electrons becomes negatively charged. The two object then attract each other, since the electrostatic force between two objects with opposite charge is attractive, and the objects are also able to attract/repel other charged objects.
