Answer
$10Hz$
Work Step by Step
We know that
$T=4t$
$\implies T=4t=4(0.025)=0.10s$
Now we can find the required frequency
$f=\frac{1}{T}$
We plug in the known values to obtain:
$f=\frac{1}{0.10}=10Hz$
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 871: 86
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