Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 22 - Think and Do: 33


This is a hands-on demonstration. The water is deflected toward the charged comb.

Work Step by Step

The negatively charged comb induces a complementary positive charge on the closer side of the stream of water (i.e., it polarizes the water) . The charge on the comb then attracts the oppositely-charged stream of water. You'll notice that the charged comb attracts small dust and paper particles too. This is discussed on page 416 and shown in Figures 22.12 and 22.13.
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