Conceptual Physics (12th Edition)

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

Chapter 22 - Reading Check Questions (Comprehension): 20

Answer

The primary purpose of a lightning rod is to allow charge to slowly leak from clouds to the ground, instead of bursting forth as a stroke of lightning. This helps prevent fires caused by lightning.

Work Step by Step

This is discussed on page 415.
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