a nonuniform electric field is directed along the x-axis at allpoints in space.t

Question

a nonuniform electric field is directed along the x-axis at allpoints in space.this magnitude of the field varies with x, but notwith respect to y or z. the axis of a cylindrical surface, 0.8mlong and 0.2m in diameter, is aligned parallel to the x-axis. Theelectric field E1 and E2, at the ends of the cylindrical surface,have magnitudes of 6000N/C and 1000N/c. as show:http://farm4.static.flickr.com/3080/3224326845_effd1c9d2b.jpg?v=0
what is electric flux entering the cylindrical surface at the leftend

Explanation / Answer

   now net change i elctric fields = 6000-1000 =5000 N/c    the net flux enterinfg will be be thru oneend........    so the end having 6000N/c id the receivingend.....so FLUX = E.dS = 6000 x 3.14 x (d^2 / 4)=...    this gives the net fl uxentering............

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