Physics, 26.02.2020 05:45 nicolehathaway1012
An infinite cylindrical rod has a uniform volume charge density rho (where rho>0). The cross section of the rod has radius r0. Find the magnitude of the electric field E at a distance r from the axis of the rod. Assume that r
Considering the symmetry of the charge distribution, choose one of the following options as the most appropriate choice of Gaussian surface to use in this problem.
A) a finite closed cylinder whose axis coincides with the axis of the rod and whose cross section has radius r0
B) a finite closed cylinder whose axis coincides with the axis of the rod and whose cross section has radius r1 C) a sphere of radius r D) a finite closed cylinder whose axis coincides with the axis of the rod and whose cross section has radius r E) an infinite cylinder whose axis coincides with the axis of the rod and whose cross section has radius r
Answers: 2
. This is because the charged cylinder is of infinite length and hence there won't be any electric flux coming out of the top and bottom flat surfaces.
, we shall have to apply Gauss's law,
( 
being the height of the Gaussian cylinder)Another question on Physics
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An infinite cylindrical rod has a uniform volume charge density rho (where rho>0). The cross sect...
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