College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 17 - Electric Current and Resistance - Learning Path Questions and Exercises - Conceptual Questions - Page 618: 17

Answer

Current is also affected by the resistance. $P=\frac{V^{2}}{R}$ or, $R=\frac{V^{2}}{P}$. So, R is inversely proportional to P, if V is constant. Thus, a high-wattage bulb has less resistance than a low-wattage bulb.

Work Step by Step

Current is also affected by the resistance. $P=\frac{V^{2}}{R}$ or, $R=\frac{V^{2}}{P}$. So, R is inversely proportional to P, if V is constant. Thus, a high-wattage bulb has less resistance than a low-wattage bulb.
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