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

Options

A. nev A/2
B. nev A/4
C. 5nev A/2
D. 3nev A/2

Answer

D