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42. A uniformly charged
rod of length L and total
P
charge Q lies along the x
axis as shown in Figure
d
P23.42. (a) Find the com-
ponents of the electric
field at the point Pon the
y axis a distance d from
the origin. (b) What are
the approximate values
of the field components when d>> L? Explain why you
would expect these results.
Figure P23.42

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