Answer
$N=7.6\times 10^4$ turns
Work Step by Step
We know that
$N=nL=\frac{B}{\mu_{\circ}I}L$
We plug in the known values to obtain:
$N=\frac{1.3}{4\pi \times 10^{-7}(8.4)}\times 0.62$
$N=7.6\times 10^4$
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 22 - Magnetism - Problems and Conceptual Exercises - Page 795: 58
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