Solution Found!
Answer: Plastic wrap becomes electrically charged when
Chapter 22, Problem 7E(choose chapter or problem)
Problem 7E
Plastic wrap becomes electrically charged when pulled from its box. As a result, it is attracted to objects such as food containers. Does the wrap stick better to plastic containers or to metal containers?
Questions & Answers
QUESTION:
Problem 7E
Plastic wrap becomes electrically charged when pulled from its box. As a result, it is attracted to objects such as food containers. Does the wrap stick better to plastic containers or to metal containers?
ANSWER:
Solution 7E
Step 1:
First, we should understand how plastic wrap is getting charged when it is pulled from the box. This is due to the static electricity, which will generate inside the plastic wrap as a part of friction between the box when it is pulled. If it is pulled from the box, charge transfer will take place between the box and the plastic wrap. As a result, it will gain some additional electron. So, the plastic wrap will be negatively charged. Since, the box has some loss of electrons, it will be positively charged.