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28. Consider an infinitesimal segment of the rod, located between
x
and
x + dx
. It has
length
dx
and contains charge
dq =
λ
dx
, where
λ
=
Q
/
L
is the linear charge density of the
rod. Its distance from
P
1
is
d
+
x
and the potential it creates at
P
1
is
dV
dq
dx
dx
=
+
=
+
1
4
1
4
00
ππ
λ
εε
.
To find the total potential at
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This note was uploaded on 01/25/2011 for the course PHYSICS 17029 taught by Professor Rebello,nobels during the Spring '10 term at Kansas State University.
 Spring '10
 Rebello,NobelS
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