Conceptual Physics (12th Edition)

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

Chapter 24 - Reading Check Questions (Comprehension) - Page 466: 15


When the straight wire is bent into a loop, this concentrates the magnetic field lines inside the loop. The closer the magnetic field lines in a region of space, the stronger the magnetic field is there.

Work Step by Step

This is discussed on page 458, and illustrated in Figure 24.9.
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