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An infinite thin plane sheet of charge density `7.08 xx 10^(-11)(C //m^(2))` is held in air. Find the electric field at a point very close to the sheet.

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`E = (sigma)/(2 epsilon_(0))= (7.08 xx 10^(-11))/(2 xx 8.854 xx 10^(-12))= 4 N //C`
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