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Electric charge of a thin rod 
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Feb1511, 10:20 PM

P: 8

Electric charge is distributed uniformly along a thin rod of length a, with total charge Q. Take the potential to be zero at infinity. Find the potential at the following points: P is distance x from (0,0) which is the right side of the rod.
Find the potential at the point P, a distance to the right of the rod. already answered In part A, what does your result reduce to as x becomes much larger than a? answer from A. Q/a4pi(e0)(ln(x+a)ln(x) So as x becomes larger than a, (moves toward infinity)V should reduce to zero. The ln's should cancel eachother out, leaving you to multiply by 0. Except 0 is not excepted. Ive tried KQ(ln(x)ln(x)) 0 KQ0 According to the software, the answer depends on x, and does not depent on a. 


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