Answer
$8.2mJ$
Work Step by Step
The energy stored in the inductor can be determined as
$U=\frac{1}{2}L(\frac{\epsilon}{R})^2$
We plug in the known values to obtain:
$U=\frac{1}{2}(6.1\times 10^{-3})(\frac{9.0}{5.5})^2$
$U=8.2mJ$
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 23 - Magnetic Flux and Faraday's Law of Induction - Problems and Conceptual Exercises - Page 832: 59
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