Following figure shows four situations in which positive and negative charges moves horizontally through a region and gives the rate at which each charge moves. Rank the situations according to the effective current through the region greatest first
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(c) For figure $(i)$ ${i_1} = 7A$
For figure $(ii)$ ${i_2} = 4 + 3 = 7A$
For figure $(iii)$ ${i_3} = 5 + 2 = 7A$
For figure $(iv)$ ${i_4} = 6 - 1 = 5A$
For figure $(ii)$ ${i_2} = 4 + 3 = 7A$
For figure $(iii)$ ${i_3} = 5 + 2 = 7A$
For figure $(iv)$ ${i_4} = 6 - 1 = 5A$
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