   Chapter 15.1, Problem 15.1QQ

Chapter
Section
Textbook Problem

A suspended object A is attracted to a neutral wall. It’s also attracted to a positively-charged object B. Which of the following is true about object A? (a) It is uncharged. (b) It has a negative charge. (c) It has a positive. (d) It may be either charged or uncharged.

To determine
The charge on object A.

Explanation

Since, object A is attracted to the neutral wall, it cannot be neutral. Object A is attracted to object B. Therefore, the charge of object A is opposite to that of object B.

Conclusion:

Opposite charges attract each other. Hence, object A is negatively charged. Thus, option (b) is correct.

Since, object A is attracted to the neutral wall, it should be charged...

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