Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 19 - DC Circuits - Questions: 4

Answer

a. R2. b. R1.

Work Step by Step

a. The current is the same when the lightbulbs are in series. The power equation, $P=I^{2}R$, says that the higher resistance bulb consumes more power, and burns brighter. b. The voltage is the same when the lightbulbs are in parallel. Using the power equation $P=\frac{V^{2}}{R}$, we see that the lower-resistance bulb consumes more power and burns brighter.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.