Chapter 20.1, Problem 4SSC

To determine

Charge of the wool, if a rubber rod is a negative charge by rubbing the rod with wool.

Explanation of Solution

Introduction:

There are two types of charges: Positive charge and negative charge. When any particle loses its electron, it becomes electrically positive charge and the object which gains electrons becomes electrically negative.

When rubber rod is rubbed on the wool, the rubber rod becomes negatively charged and wool becomes positively charged.Here wool loses its electrons to rubber rod and becomes positively charged.

Conclusion:

Wool becomes positively charged by giving electrons to rod.