Conceptual Physics (12th Edition)

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

Chapter 22 - Think and Explain: 87

Answer

See below.

Work Step by Step

The electric field polarizes the thread segments. For each bit, one end becomes positively charged, and the other becomes negatively charged. The thread then acts like a bar magnet does in a magnetic field, and turns so that the positive end points in the same direction as the electric field.
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