P24_028 - 28. The charge distribution in this problem is...

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Unformatted text preview: 28. The charge distribution in this problem is equivalent to that of an infinite sheet of charge with surface charge density σ plus a small circular pad of radius R located at the middle of the sheet with charge density −σ . We denote the electric fields produced by the sheet and the pad with subscripts 1 and 2, respectively. The net electric field E is then E = = where Eq. 23-26 is used for E2 . E1 + E2 = 2 ε0 √ σ 2 ε0 σz ˆ k z 2 + R2 ˆ (−σ ) k+ 2 ε0 1− √ z2 z + R2 ˆ k ...
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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