Suppose A(+)B(-) type fused salt is present in an electrolytic cell (not electrochemical cell). Let n electrons be entering the cell per second. Since each A(+) requires one electron to discharge, so n electrons will discharge n A(+) per second. Similarly, n B(-) are also discharged per second because the number of electrons entering and leaving the cell must be same. Now, each A(+) has unit positive charge and hence n A(+) means ne(+) charge flowing towards cathode. Also, n B(-) means ne(-) charge flowing towards anode or we can say ne(+) charge towards cathode. Does that mean total 2ne(+) charge is flowing towards cathode per second ? However, from above only ne(+) charge is entering the cell.

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    $\begingroup$ Are you confusing the flow of current with the flow of charge? They are different entities. $\endgroup$ – Uncle Al Mar 29 '14 at 16:35
  • $\begingroup$ I think current is charge flowing per unit time. $\endgroup$ – ranjan_purbey Mar 31 '14 at 2:18
  • $\begingroup$ Electrons are negative. Current and charge flow in opposite directions. Ben Franklin could have done a better job. $\endgroup$ – Uncle Al Apr 2 '14 at 15:12

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