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 - Problems - Page 552: 5

Answer

a. 330 $\Omega$ b. 8.9 $\Omega$

Work Step by Step

a. When resistors are wired in series, we use equation 19–3 to find the equivalent resistance. $$R_{eq}=3(45\Omega)+3(65\Omega)=330\Omega$$ b. When resistors are wired in parallel, we use equation 19–4 to find the equivalent resistance. $$\frac{1}{R_{eq}}=\frac{1}{45\Omega}+\frac{1}{45\Omega}+\frac{1}{45\Omega}+\frac{1}{65\Omega}+\frac{1}{65\Omega}+\frac{1}{65\Omega}$$$$R_{eq}=8.9\Omega$$
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.