Conceptual Physics (12th Edition)

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

Chapter 23 - Reading Check Questions (Comprehension): 28

Answer

A lamp's job is to transform electrical energy to emit visible light, so the more heat it emits (which is invisible to human eyes), the less efficient it is.

Work Step by Step

This is discussed on page 441.
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