Answer
a. 31.8 V.
b. Zero.
Work Step by Step
a. $V_{rms}=\frac{V}{\sqrt2}=\frac{45.0V}{\sqrt2}=31.8V$.
b. The voltage is sinusoidal, so the average is zero.
University Physics with Modern Physics (14th Edition)
by Young, Hugh D.; Freedman, Roger A.
Published by
Pearson
ISBN 10:
0321973615
ISBN 13:
978-0-32197-361-0
Chapter 31 - Alternating Current - Problems - Exercises - Page 1044: 31.3
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