Answer
a) $20W$
b) $6.4Ohm$
Work Step by Step
a) Average Power = RMS current $\times$ RMS voltage
= $\frac{2.5}{\sqrt 2}\times\frac{16}{\sqrt 2}=20W$
b) Effective Resistance = $\frac{V_{Peak}}{I_{Peak}}=\frac{16}{2.5}=6.4Ohm$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 21 - AC Circuits - Learning Path Questions and Exercises - Exercises - Page 748: 14
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