Answer
$22V$
Work Step by Step
We know that
$X_L=2\pi fL$
$\implies X_L=2\pi(25)(66)=10.37\Omega$
Now we can find rms voltage as
$V_{rms}=I_{rms}X_L$
We plug in the known values to obtain:
$V_{rms}=2.1(10.37)=22V$
Physics Technology Update (4th Edition)
by Walker, James S.
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 868: 31
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