Question

) Describe how the pith-ball and copper rod interact before the ball touches the rod. What does their interaction tell you about the movement of charge in the copper rod

Answer 1

A charge of an opposite kind is induced in the neutral pith ball when a positively charged glass rod is brought near it. So, the pith ball becomes negatively charged, and we know that opposite charges attract each other, so the pith ball gets attracted towards the glass rod.