n identical cells, each of emf `epsilon` and internal resistance r, are joined in series to from a closed circuit. One cell a is joined with reversed polarity. The potential difference across each cell, except A, isA. `(2 epsilon)/(n)`B. `((n-1)/(n)) epsilon`C. `((n-2)/(n)) epsilon`D. `((2n)/(n -2)) epsilon`

n identical cells, each of emf `epsilon` and internal resistance r, ar

1.	n identical cells, each of emf `epsilon` and internal resistance r, are joined in series to from a closed circuit. One cell a is joined with reversed polarity. The potential difference across each cell, except A, isA. `(2 epsilon)/(n)`B. `((n-1)/(n)) epsilon`C. `((n-2)/(n)) epsilon`D. `((2n)/(n -2)) epsilon`
Answer» Correct Answer - A `i = ((n - 2)E)/(nr)` `V = E - ir = E - ((n-2)E)/(nr).r = (2E)/(n)`.

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