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[" An insulating pipe of cross-section area 'A' contains an electrolyte which has two types of lons: their charges "],[" being - and + 2e.A potential difference applied between the ends of the pipe result in the drifing of the two "],[" types of ions,having drift speed = "v(-" ve ion) and "v/4" (tve ion).Both ions have the same number per unit "],[" volume "=n" .The current flowing through the pipe is "],[[" (A) nev "A/2," (B) nev "A/4," (C) "5" nev "A/2]]

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