A cylindrical conducting rod of diameter d and length /(/ >> d) is uniformly charged such that the electric field near its surface and far from its ends is Eg as shown in the Figure below. The total charge on the rod is Q and the charge per unit length is λ. Calculate the electric field at a distance r (r >> /) from the centre of the rod along its axis.
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A cylindrical conducting rod of diameter d and length /(/ >> d) is uniformly charged such that the electric field near its surface and far from its ends is Eg as shown in the Figure below. The total charge on the rod is Q and the charge per unit length is λ. Calculate the electric field at a distance r (r >> /) from the centre of the rod along its axis.