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16. Initially, we have
B
net,
y
= 0, and
B
net,
x
=
B
2
+
B
4
= 2(
µ
o
i
/2
π
d
) using Eq. 294, where
0.15 m
d
=
. To obtain the 30º condition described in the problem, we must have
0
net,
net,
1
3
tan(30 )
2
tan(30 )
2
yx
i
BB
B
B
d
µ
π
⎛⎞
′
=°
⇒
−
=
°
⎜⎟
⎝⎠
where
B
3
=
µ
o
i
/2
π
d
and
10
/2
.
B
id
′′
=
Since tan(30º) =
1
/
3
, this leads to
3
0.464
32
dd
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This note was uploaded on 06/08/2010 for the course PHY 1356 taught by Professor Bonamente during the Spring '10 term at UAA.
 Spring '10
 Bonamente

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