Plastic wrap becomes electrically charged when pulled from

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

Problem 7E Chapter 22

Conceptual Physics | 12th Edition

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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

Conceptual Physics | 12th Edition

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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?

Step-by-Step Solution:

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. Step 2: When the charged plastic wrap is placed near a plastic container, it will polarize the charges in it as represented in figure 1. If the plastic wrap is brought closer, it will repel the electrons in the plastic container which will move to the opposite side of the container. This electron deficiency in the adjacent sides of the plastic container will create a net positive charge. Since, the plastic container has been an insulator, the charges will remain as polarized and the polarized plastic container will attract the negatively charged plastic wrap more. Hence, the sticking effect will be more.

Step 3 of 3

Chapter 22, Problem 7E is Solved
Textbook: Conceptual Physics
Edition: 12
Author: Paul G. Hewitt
ISBN: 9780321909107

Since the solution to 7E from 22 chapter was answered, more than 752 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. This full solution covers the following key subjects: containers, Plastic, wrap, its, charged. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. The full step-by-step solution to problem: 7E from chapter: 22 was answered by , our top Physics solution expert on 04/03/17, 08:01AM. The answer to “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?” is broken down into a number of easy to follow steps, and 34 words. Conceptual Physics was written by and is associated to the ISBN: 9780321909107.

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