ch23_p34 - 34. The charge distribution in this problem is...

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charge with surface charge density σ = 4.50 × 10 12 C/m 2 plus a small circular pad of radius R = 1.80 cm 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. Using Eq. 22-26 for 2 E G , the net electric field E G at a distance z = 2.56 cm along the central axis is then
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