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Physics: Principles with Applications | 6th Edition | ISBN: 9780321569837 | Authors: Douglas C. Giancoli
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A positively charged rod is brought close to a neutral piece of paper, which it

Chapter 16, Problem 4Q

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QUESTION:

Problem 4Q

A positively charged rod is brought close to a neutral piece of paper, which it attracts. Draw a diagram showing the separation of charge in the paper, and explain why attraction occurs.

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QUESTION:

Problem 4Q

A positively charged rod is brought close to a neutral piece of paper, which it attracts. Draw a diagram showing the separation of charge in the paper, and explain why attraction occurs.

ANSWER:

Solution 4Q

Step 1 of 2

The piece of paper is neutral. It means there are equal number of electrons and protons. The rod is positively charged, so it has more protons than electrons.

When the rod is brought closer to the piece of paper, the positive  (+)  charges of the rod will attract the negative (-) charges from the paper through polarization. The positive charges of the paper will be be pushed further from the rod due to repulsion from the rod’s positive charges.

This will lead to the attraction between the rod and the paper.

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