A rod (length = 2.0 m) is uniformly charged and has a total charge of 40 nC. What is the magnitude of the electric field at a point which lies along the axis of the rod and is 3.0 m from the center of the rod?
a.
40 N/C
b.
45 N/C
c.
24 N/C
d.
90 N/C
e.
36 N/C
b
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