Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 24 - Alternating-Current Circuits - Problems and Conceptual Exercises - Page 871: 80

Answer

$127mA$

Work Step by Step

We know that $C_{eq}=()^{-1}=(\frac{1}{4.40}+\frac{1}{8.80})^{-1}=2.933\mu F$ Now $X_c=\frac{1}{2\pi fC}=\frac{1}{2\pi(60.0)(2.933)}=904.3\Omega$ Now we can find the rms current supplied by the generator as: $I_{rms}=\frac{V_{rms}}{X_c}$ We plug in the known values to obtain: $I_{rms}=\frac{115}{904.3}=127mA$
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