Chapter 6, Problem 36R

To determine

To complete: The sentence.

Explanation of Solution

Introduction:

The process of transferring charge by touching or rubbingtwo objectsis called charging by contact.

When two materials are rubbed together, itcan result in a transfer of electrons. Then one material becomes positively charge and the other has an equal amount of negative charge.

If a balloon is rubbed on wool, a transfer of electrons takes by place due to contact between them and both the balloon and wool gets charged.

Conclusion: Charging a balloon by rubbing it on wool is an example of charging by contact.