Two thin rods of length L lie along the x-axis, one between x = a/2 and x
Question:
(a) Calculate the electric field produced by the second rod at points along the positive x-axis.
(b) Show that the magnitude of the force that one rod exerts on the other is
(c) Show that if a » L. the magnitude of this force reduces to F = Q2/4πє0a2 (Hint: Use the expansion in (1 + z) = Z - z2 /2 + z3/3 - ..., valid for |z| « 1. Carry all expansions to at least order L2 / Ia2.) Interpret this result.
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Related Book For
Physics
ISBN: 9781119539636
11th Edition
Authors: John D. Cutnell, Kenneth W. Johnson, David Young, Shane Stadler
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