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week3 (dragged) 9

week3 (dragged) 9 - the electric field cannot be different...

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August 12, 2010 University Physics, Chapter 22 66 Cylindrical Symmetry (2) ! From symmetry we can see that the electric field will extend radially from the wire ! How? If we rotate the wire along its axis, the electric field must look the same Cylindrical symmetry If we imagine a very long wire,
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Unformatted text preview: the electric field cannot be different anywhere along the length of the wire • Translational symmetry ! Thus our assumption of a right cylinder as a Gaussian surface is perfectly suited for the calculation of the electric field using Gauss’ Law E Thursday, September 9, 2010...
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