Figure 20.34 shows a thin rod of length L carrying charge Q distributed uniformly over its length.

Question:

Figure 20.34 shows a thin rod of length L carrying charge Q
distributed uniformly over its length.
(a) What’s the line charge
density on the rod? 

(b) Modify the calculation of Example 20.7
to find an expression for the electric field at a point P a distance
y along the perpendicular bisector. 

(c) Show that your result reduces the the field of a point charge when |y|>>L.

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Essential University Physics

ISBN: 978-0321976420

3rd Edition Volume 2

Authors: Richard Wolfsonby

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