Conceptual Physics (12th Edition)

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

Chapter 23 - Think and Explain: 62


When we increase the current flowing through the filament of a lightbulb, the bulb glows brighter.

Work Step by Step

More current is driven by increasing the voltage across the filament, so the power (i.e., the product of current and voltage) increases. The bulb will glow brighter.
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