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Problem
Problem
A rod of length
L
L
L
lies along the
x
x
x
-axis with its left end at the origin. It has a non-uniform charge density
ρ
=
θ
x
\rho = \theta x
ρ
=
θ
x
, where
θ
\theta
θ
is a positive constant. a. What are the units of
θ
\theta
θ
? b. Calculate the electric potential at point
A
A
A
where
x
=
−
d
x = -d
x
=
−
d
.
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