Conceptual Physics (12th Edition)

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

Chapter 23 - Reading Check Questions (Comprehension): 30


4 V.

Work Step by Step

For two or more devices connected in series, the supply voltage (here, it is 6 V) equals the sum of the voltage drops across the devices. The voltage drop (i.e., voltage difference) across the first lamp is 2 V, so the voltage drop across the second is 4 V. This is Rule 4 for series circuits, on page 443. Series circuits are discussed on pages 442-443.
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